Build front end projects in parallel using lerna (#1101)

* Added lerna config

* Sets up lerna to use yarn workspaces

Build-Yarn-Workspace.ps1

@@ -1,3 +1,3 @@
 
 yarn install
-yarn workspaces run build
+yarn lerna run build --parallel

Build/BuildScripts/Module.build

@@ -44,6 +44,6 @@
 	  <Message Importance="high" Text="Running Yarn for $(WorkingDirectory)" />
 
 	  <Yarn Command="install" WorkingDirectory="$(WorkingDirectory)" IgnoreExitCode="false" Condition="$(WorkingDirectory.Length) > 0 AND !Exists('$(WorkingDirectory)/node_modules')" />
-    <Yarn Command="workspaces run build" WorkingDirectory="$(WorkingDirectory)" IgnoreExitCode="false" Condition="$(WorkingDirectory.Length) > 0" />
+    <Yarn Command="lerna run build --parallel" WorkingDirectory="$(WorkingDirectory)" IgnoreExitCode="false" Condition="$(WorkingDirectory.Length) > 0" />
   </Target>
 </Project>

lerna.json

@@ -0,0 +1,8 @@
+{
+  "packages": [
+    "src/*"
+  ],
+  "version": "independent",
+  "npmClient": "yarn",
+  "useWorkspaces": true
+}

package.json

@@ -20,5 +20,9 @@
     "Extensions/Content/Dnn.PersonaBar.Extensions/WebApps/Users.Web",
     "Extensions/Content/Dnn.PersonaBar.Extensions/WebApps/Users.Web/src/_exportables",
     "Extensions/Content/Dnn.PersonaBar.Extensions/WebApps/Vocabularies.Web"
-  ]
-}
+  ],
+  "devDependencies": {
+    "lerna": "^3.16.4"
+  },
+  "name": "admin-experience"
+}