[Example] Add example using directives

Add example of binding a directive with Angular using
declarative syntax. WTD-518.

example/builtins/bundle.json

@@ -10,7 +10,10 @@
             }
         ],
         "directives": [
-
+            {
+                "key": "exampleDirective",
+                "implementation": "ExampleDirective.js"
+            }
         ],
         "routes": [
             {

example/builtins/res/templates/example.html

@@ -1,2 +1,3 @@
 <p>Hello, world! I am the default route.</p>
 <p ng-controller="ExampleController">My controller has told me: "{{phrase}}"</p>
+<span example-directive></span>

example/builtins/src/ExampleDirective.js

@@ -0,0 +1,23 @@
+/*global define,Promise*/
+
+/**
+ * Module defining ExampleDirective. Created by vwoeltje on 11/4/14.
+ */
+define(
+    [],
+    function () {
+        "use strict";
+
+        /**
+         *
+         * @constructor
+         */
+        function ExampleDirective() {
+            return {
+                template: "And this came from a directive."
+            };
+        }
+
+        return ExampleDirective;
+    }
+);