diff --git a/package-lock.json b/package-lock.json
index c593766..58ca4e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,6 +22,12 @@
       "integrity": "sha512-Is+l3mcHvs47sKy+afn2O1rV4ldZFU7W8101cNlOd+MRbjM4Onida8jSZnJdTe/0Pcf25g9BNIUsuugmE6puHA==",
       "dev": true
     },
+    "@ungap/promise-all-settled": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@ungap/promise-all-settled/-/promise-all-settled-1.1.2.tgz",
+      "integrity": "sha512-sL/cEvJWAnClXw0wHk85/2L0G6Sj8UB0Ctc1TEMbKSsmpRosqhwj9gWgFRZSrBr2f9tiXISwNhCPmlfqUqyb9Q==",
+      "dev": true
+    },
     "JSONStream": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.5.tgz",
@@ -71,9 +77,9 @@
       }
     },
     "ansi-colors": {
-      "version": "3.2.3",
-      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.3.tgz",
-      "integrity": "sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
+      "integrity": "sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==",
       "dev": true
     },
     "ansi-regex": {
@@ -1882,15 +1888,6 @@
       "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
       "dev": true
     },
-    "define-properties": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
-      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
-      "dev": true,
-      "requires": {
-        "object-keys": "^1.0.12"
-      }
-    },
     "define-property": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/define-property/-/define-property-2.0.2.tgz",
@@ -1980,9 +1977,9 @@
       }
     },
     "diff": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
-      "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
       "dev": true
     },
     "diffie-hellman": {
@@ -2097,35 +2094,6 @@
         "is-arrayish": "^0.2.1"
       }
     },
-    "es-abstract": {
-      "version": "1.16.3",
-      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.16.3.tgz",
-      "integrity": "sha512-WtY7Fx5LiOnSYgF5eg/1T+GONaGmpvpPdCpSnYij+U2gDTL0UPfWrhDw7b2IYb+9NQJsYpCA0wOQvZfsd6YwRw==",
-      "dev": true,
-      "requires": {
-        "es-to-primitive": "^1.2.1",
-        "function-bind": "^1.1.1",
-        "has": "^1.0.3",
-        "has-symbols": "^1.0.1",
-        "is-callable": "^1.1.4",
-        "is-regex": "^1.0.4",
-        "object-inspect": "^1.7.0",
-        "object-keys": "^1.1.1",
-        "string.prototype.trimleft": "^2.1.0",
-        "string.prototype.trimright": "^2.1.0"
-      }
-    },
-    "es-to-primitive": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz",
-      "integrity": "sha512-QCOllgZJtaUo9miYBcLChTUaHNjJF3PYs1VidD7AwiEj1kYxKeQTctLAezAOH5ZKRH0g2IgPn6KwB4IT8iRpvA==",
-      "dev": true,
-      "requires": {
-        "is-callable": "^1.1.4",
-        "is-date-object": "^1.0.1",
-        "is-symbol": "^1.0.2"
-      }
-    },
     "escape-string-regexp": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-2.0.0.tgz",
@@ -2408,21 +2376,10 @@
       }
     },
     "flat": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/flat/-/flat-4.1.0.tgz",
-      "integrity": "sha512-Px/TiLIznH7gEDlPXcUD4KnBusa6kR6ayRUVcnEAbreRIuhkqow/mun59BuRXwoYk7ZQOLW1ZM05ilIvK38hFw==",
-      "dev": true,
-      "requires": {
-        "is-buffer": "~2.0.3"
-      },
-      "dependencies": {
-        "is-buffer": {
-          "version": "2.0.4",
-          "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
-          "integrity": "sha512-Kq1rokWXOPXWuaMAqZiJW4XxsmD9zGx9q4aePabbn3qCRGedtH7Cm+zV8WETitMfu1wdh+Rvd6w5egwSngUX2A==",
-          "dev": true
-        }
-      }
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/flat/-/flat-5.0.2.tgz",
+      "integrity": "sha512-b6suED+5/3rTpUBdG1gupIl8MPFCAMA0QXwmljLhvCUKcUvdE4gWky9zpuGCcXHOsz4J9wPGNWq6OKpmIzz3hQ==",
+      "dev": true
     },
     "follow-redirects": {
       "version": "1.13.0",
@@ -2962,12 +2919,6 @@
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
-    "has-symbols": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.1.tgz",
-      "integrity": "sha512-PLcsoqu++dmEIZB+6totNFKq/7Do+Z0u4oT0zKOJNl3lYK6vGwwu2hjHs+68OEZbTjiUE9bgOABXbP/GvrS0Kg==",
-      "dev": true
-    },
     "has-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-value/-/has-value-1.0.0.tgz",
@@ -3296,12 +3247,6 @@
       "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
       "dev": true
     },
-    "is-callable": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.1.4.tgz",
-      "integrity": "sha512-r5p9sxJjYnArLjObpjA4xu5EKI3CuKHkJXMhT7kwbpUyIFD1n5PMAsoPvWnvtZiNz7LjkYDRZhd7FlI0eMijEA==",
-      "dev": true
-    },
     "is-ci": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/is-ci/-/is-ci-1.2.1.tgz",
@@ -3340,12 +3285,6 @@
         }
       }
     },
-    "is-date-object": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.1.tgz",
-      "integrity": "sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY=",
-      "dev": true
-    },
     "is-descriptor": {
       "version": "0.1.6",
       "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-0.1.6.tgz",
@@ -3473,15 +3412,6 @@
       "integrity": "sha1-HQPd7VO9jbDzDCbk+V02/HyH3CQ=",
       "dev": true
     },
-    "is-regex": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.0.4.tgz",
-      "integrity": "sha1-VRdIm1RwkbCTDglWVM7SXul+lJE=",
-      "dev": true,
-      "requires": {
-        "has": "^1.0.1"
-      }
-    },
     "is-retry-allowed": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/is-retry-allowed/-/is-retry-allowed-1.2.0.tgz",
@@ -3494,15 +3424,6 @@
       "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ=",
       "dev": true
     },
-    "is-symbol": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/is-symbol/-/is-symbol-1.0.3.tgz",
-      "integrity": "sha512-OwijhaRSgqvhm/0ZdAcXNZt9lYdKFpcRDT5ULUuYXPoT794UNOdU+gpT6Rzo7b4V2HUl/op6GqY894AZwv9faQ==",
-      "dev": true,
-      "requires": {
-        "has-symbols": "^1.0.1"
-      }
-    },
     "is-utf8": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/is-utf8/-/is-utf8-0.2.1.tgz",
@@ -3733,47 +3654,61 @@
       "dev": true
     },
     "log-symbols": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-2.2.0.tgz",
-      "integrity": "sha512-VeIAFslyIerEJLXHziedo2basKbMKtTw3vfn5IzG0XTjhAVEJyNHnL2p7vc+wBDSdQuUpNw3M2u6xb9QsAY5Eg==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-4.0.0.tgz",
+      "integrity": "sha512-FN8JBzLx6CzeMrB0tg6pqlGU1wCrXW+ZXGH481kfsBqer0hToTIiHdjH4Mq8xJUbvATujKCvaREGWpGUionraA==",
       "dev": true,
       "requires": {
-        "chalk": "^2.0.1"
+        "chalk": "^4.0.0"
       },
       "dependencies": {
         "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
           "dev": true,
           "requires": {
-            "color-convert": "^1.9.0"
+            "color-convert": "^2.0.1"
           }
         },
         "chalk": {
-          "version": "2.4.2",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
-          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
           "dev": true,
           "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
           }
         },
-        "escape-string-regexp": {
-          "version": "1.0.5",
-          "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-          "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
           "dev": true
         },
         "supports-color": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
           "dev": true,
           "requires": {
-            "has-flag": "^3.0.0"
+            "has-flag": "^4.0.0"
           }
         }
       }
@@ -4091,127 +4026,246 @@
       "dev": true
     },
     "mocha": {
-      "version": "6.2.2",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-6.2.2.tgz",
-      "integrity": "sha512-FgDS9Re79yU1xz5d+C4rv1G7QagNGHZ+iXF81hO8zY35YZZcLEsJVfFolfsqKFWunATEvNzMK0r/CwWd/szO9A==",
+      "version": "8.2.1",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.2.1.tgz",
+      "integrity": "sha512-cuLBVfyFfFqbNR0uUKbDGXKGk+UDFe6aR4os78XIrMQpZl/nv7JYHcvP5MFIAb374b2zFXsdgEGwmzMtP0Xg8w==",
       "dev": true,
       "requires": {
-        "ansi-colors": "3.2.3",
+        "@ungap/promise-all-settled": "1.1.2",
+        "ansi-colors": "4.1.1",
         "browser-stdout": "1.3.1",
-        "debug": "3.2.6",
-        "diff": "3.5.0",
-        "escape-string-regexp": "1.0.5",
-        "find-up": "3.0.0",
-        "glob": "7.1.3",
+        "chokidar": "3.4.3",
+        "debug": "4.2.0",
+        "diff": "4.0.2",
+        "escape-string-regexp": "4.0.0",
+        "find-up": "5.0.0",
+        "glob": "7.1.6",
         "growl": "1.10.5",
         "he": "1.2.0",
-        "js-yaml": "3.13.1",
-        "log-symbols": "2.2.0",
+        "js-yaml": "3.14.0",
+        "log-symbols": "4.0.0",
         "minimatch": "3.0.4",
-        "mkdirp": "0.5.1",
-        "ms": "2.1.1",
-        "node-environment-flags": "1.0.5",
-        "object.assign": "4.1.0",
-        "strip-json-comments": "2.0.1",
-        "supports-color": "6.0.0",
-        "which": "1.3.1",
+        "ms": "2.1.2",
+        "nanoid": "3.1.12",
+        "serialize-javascript": "5.0.1",
+        "strip-json-comments": "3.1.1",
+        "supports-color": "7.2.0",
+        "which": "2.0.2",
         "wide-align": "1.1.3",
-        "yargs": "13.3.0",
-        "yargs-parser": "13.1.1",
-        "yargs-unparser": "1.6.0"
+        "workerpool": "6.0.2",
+        "yargs": "13.3.2",
+        "yargs-parser": "13.1.2",
+        "yargs-unparser": "2.0.0"
       },
       "dependencies": {
-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+        "anymatch": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.1.tgz",
+          "integrity": "sha512-mM8522psRCqzV+6LhomX5wgp25YVibjh8Wj23I5RPkPppSVSjyKD2A2mBJmWGa+KN7f2D6LNh9jkBCeyLktzjg==",
+          "dev": true,
+          "requires": {
+            "normalize-path": "^3.0.0",
+            "picomatch": "^2.0.4"
+          }
+        },
+        "binary-extensions": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.1.0.tgz",
+          "integrity": "sha512-1Yj8h9Q+QDF5FzhMs/c9+6UntbD5MkRfRwac8DoEm9ZfUBZ7tZ55YcGVAzEe4bXsdQHEk+s9S5wsOKVdZrw0tQ==",
           "dev": true
         },
+        "braces": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
+          "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+          "dev": true,
+          "requires": {
+            "fill-range": "^7.0.1"
+          }
+        },
+        "chokidar": {
+          "version": "3.4.3",
+          "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.4.3.tgz",
+          "integrity": "sha512-DtM3g7juCXQxFVSNPNByEC2+NImtBuxQQvWlHunpJIS5Ocr0lG306cC7FCi7cEA0fzmybPUIl4txBIobk1gGOQ==",
+          "dev": true,
+          "requires": {
+            "anymatch": "~3.1.1",
+            "braces": "~3.0.2",
+            "fsevents": "~2.1.2",
+            "glob-parent": "~5.1.0",
+            "is-binary-path": "~2.1.0",
+            "is-glob": "~4.0.1",
+            "normalize-path": "~3.0.0",
+            "readdirp": "~3.5.0"
+          }
+        },
         "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.2.0.tgz",
+          "integrity": "sha512-IX2ncY78vDTjZMFUdmsvIRFY2Cf4FnD0wRs+nQwJU8Lu99/tPFdb0VybiiMTPe3I6rQmwsqQqRBvxU+bZ/I8sg==",
           "dev": true,
           "requires": {
-            "ms": "^2.1.1"
+            "ms": "2.1.2"
           }
         },
         "escape-string-regexp": {
-          "version": "1.0.5",
-          "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-          "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
+          "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==",
           "dev": true
         },
+        "fill-range": {
+          "version": "7.0.1",
+          "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
+          "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+          "dev": true,
+          "requires": {
+            "to-regex-range": "^5.0.1"
+          }
+        },
         "find-up": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
-          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-5.0.0.tgz",
+          "integrity": "sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng==",
           "dev": true,
           "requires": {
-            "locate-path": "^3.0.0"
+            "locate-path": "^6.0.0",
+            "path-exists": "^4.0.0"
           }
         },
-        "glob": {
-          "version": "7.1.3",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
-          "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
+        "glob-parent": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.1.tgz",
+          "integrity": "sha512-FnI+VGOpnlGHWZxthPGR+QhR78fuiK0sNLkHQv+bL9fQi57lNNdquIbna/WrfROrolq8GK5Ek6BiMwqL/voRYQ==",
           "dev": true,
           "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
+            "is-glob": "^4.0.1"
           }
         },
-        "mkdirp": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
+        },
+        "is-binary-path": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
+          "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
           "dev": true,
           "requires": {
-            "minimist": "0.0.8"
+            "binary-extensions": "^2.0.0"
+          }
+        },
+        "is-number": {
+          "version": "7.0.0",
+          "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+          "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+          "dev": true
+        },
+        "js-yaml": {
+          "version": "3.14.0",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.0.tgz",
+          "integrity": "sha512-/4IbIeHcD9VMHFqDR/gQ7EdZdLimOvW2DdcxFjdyyZ9NsbS+ccrXqVWDtab/lRl5AlUqmpBx8EhPaWR+OtY17A==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
+          "integrity": "sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^5.0.0"
           }
         },
         "ms": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
-          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        },
+        "normalize-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
+          "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+          "dev": true
+        },
+        "p-limit": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-3.0.2.tgz",
+          "integrity": "sha512-iwqZSOoWIW+Ew4kAGUlN16J4M7OB3ysMLSZtnhmqx7njIHFPlxWBX8xo3lVTyFVq6mI/lL9qt2IsN1sHwaxJkg==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-5.0.0.tgz",
+          "integrity": "sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^3.0.2"
+          }
+        },
+        "path-exists": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+          "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
           "dev": true
         },
+        "readdirp": {
+          "version": "3.5.0",
+          "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.5.0.tgz",
+          "integrity": "sha512-cMhu7c/8rdhkHXWsY+osBhfSy0JikwpHK/5+imo+LpeasTF8ouErHrlYkwT0++njiyuDvc7OFY5T3ukvZ8qmFQ==",
+          "dev": true,
+          "requires": {
+            "picomatch": "^2.2.1"
+          },
+          "dependencies": {
+            "picomatch": {
+              "version": "2.2.2",
+              "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",
+              "integrity": "sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==",
+              "dev": true
+            }
+          }
+        },
         "strip-json-comments": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
-          "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",
+          "integrity": "sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==",
           "dev": true
         },
         "supports-color": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.0.0.tgz",
-          "integrity": "sha512-on9Kwidc1IUQo+bQdhi8+Tijpo0e1SS6RoGo2guUwn5vdaxw8RXOF9Vb2ws+ihWOmh4JnCJOvaziZWP1VABaLg==",
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
           "dev": true,
           "requires": {
-            "has-flag": "^3.0.0"
+            "has-flag": "^4.0.0"
           }
         },
-        "which": {
-          "version": "1.3.1",
-          "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
-          "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+        "to-regex-range": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+          "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
           "dev": true,
           "requires": {
-            "isexe": "^2.0.0"
+            "is-number": "^7.0.0"
           }
         },
-        "yargs-parser": {
-          "version": "13.1.1",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
-          "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+        "which": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+          "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
           "dev": true,
           "requires": {
-            "camelcase": "^5.0.0",
-            "decamelize": "^1.2.0"
+            "isexe": "^2.0.0"
           }
         }
       }
@@ -4519,6 +4573,12 @@
         "remove-array-items": "^1.0.0"
       }
     },
+    "nanoid": {
+      "version": "3.1.12",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.12.tgz",
+      "integrity": "sha512-1qstj9z5+x491jfiC4Nelk+f8XBad7LN20PmyWINJEMRSf3wcAjAWysw1qaA8z6NSKe2sjq1hRSDpBH5paCb6A==",
+      "dev": true
+    },
     "nanomatch": {
       "version": "1.2.13",
       "resolved": "https://registry.npmjs.org/nanomatch/-/nanomatch-1.2.13.tgz",
@@ -4557,16 +4617,6 @@
         "nanoscheduler": "^1.0.2"
       }
     },
-    "node-environment-flags": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/node-environment-flags/-/node-environment-flags-1.0.5.tgz",
-      "integrity": "sha512-VNYPRfGfmZLx0Ye20jWzHUjyTW/c+6Wq+iLhDzUI4XmhrDd9l/FozXV3F2xOaXjvp0co0+v1YSR3CMP6g+VvLQ==",
-      "dev": true,
-      "requires": {
-        "object.getownpropertydescriptors": "^2.0.3",
-        "semver": "^5.7.0"
-      }
-    },
     "nodemon": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/nodemon/-/nodemon-2.0.1.tgz",
@@ -4776,18 +4826,6 @@
         }
       }
     },
-    "object-inspect": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.7.0.tgz",
-      "integrity": "sha512-a7pEHdh1xKIAgTySUGgLMx/xwDZskN1Ud6egYYN3EdRW4ZMPNEDUTF+hwy2LUC+Bl+SyLXANnwz/jyh/qutKUw==",
-      "dev": true
-    },
-    "object-keys": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
-      "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==",
-      "dev": true
-    },
     "object-visit": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/object-visit/-/object-visit-1.0.1.tgz",
@@ -4797,28 +4835,6 @@
         "isobject": "^3.0.0"
       }
     },
-    "object.assign": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.0.tgz",
-      "integrity": "sha512-exHJeq6kBKj58mqGyTQ9DFvrZC/eR6OwxzoM9YRoGBqrXYonaFyGiFMuc9VZrXf7DarreEwMpurG3dd+CNyW5w==",
-      "dev": true,
-      "requires": {
-        "define-properties": "^1.1.2",
-        "function-bind": "^1.1.1",
-        "has-symbols": "^1.0.0",
-        "object-keys": "^1.0.11"
-      }
-    },
-    "object.getownpropertydescriptors": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.0.3.tgz",
-      "integrity": "sha1-h1jIRvW0B62rDyNuCYbxSwUcqhY=",
-      "dev": true,
-      "requires": {
-        "define-properties": "^1.1.2",
-        "es-abstract": "^1.5.1"
-      }
-    },
     "object.pick": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/object.pick/-/object.pick-1.3.0.tgz",
@@ -5527,6 +5543,15 @@
         "semver": "^5.0.3"
       }
     },
+    "serialize-javascript": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-5.0.1.tgz",
+      "integrity": "sha512-SaaNal9imEO737H2c05Og0/8LUXG7EnsZyMa8MzkmuHoELfT6txuj0cMqRj6zfPKnmQ1yasR4PCJc8x+M4JSPA==",
+      "dev": true,
+      "requires": {
+        "randombytes": "^2.1.0"
+      }
+    },
     "set-blocking": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
@@ -5924,26 +5949,6 @@
         }
       }
     },
-    "string.prototype.trimleft": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/string.prototype.trimleft/-/string.prototype.trimleft-2.1.0.tgz",
-      "integrity": "sha512-FJ6b7EgdKxxbDxc79cOlok6Afd++TTs5szo+zJTUyow3ycrRfJVE2pq3vcN53XexvKZu/DJMDfeI/qMiZTrjTw==",
-      "dev": true,
-      "requires": {
-        "define-properties": "^1.1.3",
-        "function-bind": "^1.1.1"
-      }
-    },
-    "string.prototype.trimright": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/string.prototype.trimright/-/string.prototype.trimright-2.1.0.tgz",
-      "integrity": "sha512-fXZTSV55dNBwv16uw+hh5jkghxSnc5oHq+5K/gXgizHwAvMetdAJlHqqoFC1FSDVPYWLkAKl2cxpUT41sV7nSg==",
-      "dev": true,
-      "requires": {
-        "define-properties": "^1.1.3",
-        "function-bind": "^1.1.1"
-      }
-    },
     "string_decoder": {
       "version": "0.10.31",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
@@ -6624,6 +6629,12 @@
         "string-width": "^2.1.1"
       }
     },
+    "workerpool": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.0.2.tgz",
+      "integrity": "sha512-DSNyvOpFKrNusaaUwk+ej6cBj1bmhLcBfj80elGk+ZIo5JSkq+unB1dLKEOcNfJDZgjGICfhQ0Q5TbP0PvF4+Q==",
+      "dev": true
+    },
     "wrap-ansi": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
@@ -6735,9 +6746,9 @@
       "dev": true
     },
     "yargs": {
-      "version": "13.3.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
-      "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+      "version": "13.3.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
+      "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
       "dev": true,
       "requires": {
         "cliui": "^5.0.0",
@@ -6749,7 +6760,7 @@
         "string-width": "^3.0.0",
         "which-module": "^2.0.0",
         "y18n": "^4.0.0",
-        "yargs-parser": "^13.1.1"
+        "yargs-parser": "^13.1.2"
       },
       "dependencies": {
         "ansi-regex": {
@@ -6808,14 +6819,35 @@
       }
     },
     "yargs-unparser": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.0.tgz",
-      "integrity": "sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-2.0.0.tgz",
+      "integrity": "sha512-7pRTIA9Qc1caZ0bZ6RYRGbHJthJWuakf+WmHK0rVeLkNrrGhfoabBNdue6kdINI6r4if7ocq9aD/n7xwKOdzOA==",
       "dev": true,
       "requires": {
-        "flat": "^4.1.0",
-        "lodash": "^4.17.15",
-        "yargs": "^13.3.0"
+        "camelcase": "^6.0.0",
+        "decamelize": "^4.0.0",
+        "flat": "^5.0.2",
+        "is-plain-obj": "^2.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "6.2.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-6.2.0.tgz",
+          "integrity": "sha512-c7wVvbw3f37nuobQNtgsgG9POC9qMbNuMQmTCqZv23b6MIz0fcYpBiOlv9gEN/hdLdnZTDQhg6e9Dq5M1vKvfg==",
+          "dev": true
+        },
+        "decamelize": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-4.0.0.tgz",
+          "integrity": "sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ==",
+          "dev": true
+        },
+        "is-plain-obj": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/is-plain-obj/-/is-plain-obj-2.1.0.tgz",
+          "integrity": "sha512-YWnfyRwxL/+SsrWYfOpUtz5b3YD+nyfkHvjbcanzk8zgyO4ASD67uVMRt8k5bM4lLMDnXfriRhOpemw+NfT1eA==",
+          "dev": true
+        }
       }
     }
   }
diff --git a/package.json b/package.json
index 290df4c..46d7e96 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "http-server": "^0.12.3",
     "jsdoc": "^3.6.3",
     "load-grunt-tasks": "^5.1.0",
-    "mocha": "^6.2.2",
+    "mocha": "^8.2.1",
     "mocha-chrome": "^2.2.0",
     "nodemon": "^2.0.1",
     "uglify-js": "^3.7.2"