V8: Angular Divorce: isUndefined (#7856)

* Bye bye angular.isUndefinied & hello Utilities.isUndefined

* Add utilities.js to lazyload initialise scripts

* Remove utilities.js as copied over client folder

src/Umbraco.Web/JavaScript/JsInitialize.js

@@ -34,6 +34,8 @@
     'lib/umbraco/NamespaceManager.js',
     'lib/umbraco/LegacySpeechBubble.js',
 
+    'js/utilities.js',
+
     'js/app.js',
 
     'js/umbraco.resources.js',
@@ -43,5 +45,5 @@
     'js/umbraco.interceptors.js',
     'js/umbraco.controllers.js',
     'js/routes.js',
-    'js/init.js'
+    'js/init.js'    
 ]

src/Umbraco.Web/JavaScript/PreviewInitialize.js

@@ -3,6 +3,9 @@
     '../lib/angular/angular.js',
     '../lib/underscore/underscore-min.js',
     '../lib/umbraco/Extensions.js',
+
+    '../js/utilities.js',
+
     '../js/app.js',
     '../js/umbraco.resources.js',
     '../js/umbraco.services.js',