[Example] Add example of service registration

Add an example of registering a plain service
with Angular. WTD-518.

example/builtins/bundle.json

@@ -1,12 +1,13 @@
 {
     "name": "Angular Built-ins Example",
     "description": "Example showing how to declare extensions with built-in support from Angular.",
+    "sources": "src",
     "extensions": {
         "controllers": [
             {
                 "key": "ExampleController",
                 "implementation": "ExampleController.js",
-                "depends": [ "$scope" ]
+                "depends": [ "$scope", "exampleService" ]
             }
         ],
         "directives": [
@@ -21,7 +22,10 @@
             }
         ],
         "services": [
-
+            {
+                "key": "exampleService",
+                "implementation": "ExampleService.js"
+            }
         ]
     }
 }

example/builtins/src/ExampleController.js

@@ -12,8 +12,8 @@ define(
          *
          * @constructor
          */
-        function ExampleController($scope) {
-            $scope.phrase = "I am a controller.";
+        function ExampleController($scope, exampleService) {
+            $scope.phrase = exampleService.getMessage();
         }
 
         return ExampleController;

example/builtins/src/ExampleService.js

@@ -0,0 +1,25 @@
+/*global define,Promise*/
+
+/**
+ * Module defining ExampleService. Created by vwoeltje on 11/4/14.
+ */
+define(
+    [],
+    function () {
+        "use strict";
+
+        /**
+         *
+         * @constructor
+         */
+        function ExampleService() {
+            return {
+                getMessage: function () {
+                    return "I heard this from a service";
+                }
+            };
+        }
+
+        return ExampleService;
+    }
+);