fix: set/get Signer.required (templates only)

lib/Signer.js

@@ -36,6 +36,12 @@ function Signer(newSigner = {}) {
      */
     role: undefined,
 
+    /**
+     * Returns 1 if this signing role is required (Templates only).
+     * @type {Boolean}
+     */
+    required: false,
+
     /**
      * Pins are used as an extra level of security and must be put in
      * by the signer before signing the Document.
@@ -189,6 +195,10 @@ function Signer(newSigner = {}) {
     return signer.role;
   };
 
+  this.getRequired = function () {
+    return signer.required;
+  };
+
   this.setName = function (newName) {
     signer.name = newName;
   };
@@ -201,6 +211,10 @@ function Signer(newSigner = {}) {
     signer.role = newRole;
   }
 
+  this.setRequired = function (newRequired) {
+    signer.required = newRequired;
+  }
+
   this.toObject = function () {
     return Object.assign(this, signer);
   };