feat(bundle): adds a self-executing dev bundle (SFX).

modules/angular2/angular2_sfx.es6

@@ -0,0 +1,14 @@
+import * as angular from './angular2';
+
+var _prevAngular = window.angular;
+
+/**
+ * Calling noConflict will restore window.angular to its pre-angular loading state
+ * and return the angular module object. 
+ */
+angular.noConflict = function() {
+  window.angular = _prevAngular;
+  return angular;
+};
+
+window.angular = angular;