[Framework] Refactor source folder

Refactor framework source folder; move each initialization
stage into its own directory. WTD-518.

platform/framework/src/resolve/ImplementationLoader.js

@@ -0,0 +1,46 @@
+/*global define,Promise*/
+
+/**
+ * Module defining ImplementationLoader. Created by vwoeltje on 11/3/14.
+ */
+define(
+    [],
+    function () {
+        "use strict";
+
+        /**
+         * Responsible for loading extension implementations
+         * (AMD modules.) Acts as a wrapper around RequireJS to
+         * provide a promise-like API.
+         * @constructor
+         * @param {*} require RequireJS, or an object with similar API
+         * @param {*} $log Angular's logging service
+         */
+        function ImplementationLoader(require) {
+            function loadModule(path) {
+                return new Promise(function (fulfill, reject) {
+                    require([path], fulfill, reject);
+                });
+            }
+
+            return {
+                /**
+                 * Load an extension's implementation; or, equivalently,
+                 * load an AMD module. This is fundamentally similar
+                 * to a call to RequireJS, except that the result is
+                 * wrapped in a promise. The promise will be fulfilled
+                 * with the loaded module, or rejected with the error
+                 * reported by Require.
+                 *
+                 * @method
+                 * @memberof ImplementationLoader#
+                 * @param {string} path the path to the module to load
+                 * @returns {Promise} a promise for the specified module.
+                 */
+                load: loadModule
+            };
+        }
+
+        return ImplementationLoader;
+    }
+);