[Example] Use implementations in examples

Use implementations of custom extensions in examples.
WTD-518.

example/extensions/src/SomeExample.js

@@ -0,0 +1,31 @@
+/*global define,Promise*/
+
+/**
+ * Module defining SomeExample. Created by vwoeltje on 11/5/14.
+ */
+define(
+    [],
+    function () {
+        "use strict";
+
+        /**
+         *
+         * @constructor
+         */
+        function SomeExample(exampleService, message) {
+            return {
+                getText: function () {
+                    return [
+                        '"',
+                        exampleService.getMessage(),
+                        '" and "',
+                        message,
+                        '"'
+                    ].join("");
+                }
+            };
+        }
+
+        return SomeExample;
+    }
+);