[Tree] Begin adding mct-tree directive

...to reduce watch counts associated with the tree;
#732 and #315

platform/commonUI/general/src/directives/MCTTree.js

@@ -0,0 +1,39 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT Web includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+/*global define*/
+
+define([
+    'text!../../res/templates/subtree.html'
+], function () {
+    function MCTTree() {
+        function link(scope, elem) {
+
+        }
+
+        return {
+            link: link,
+            scope: { mctModel: "=" }
+        };
+    }
+
+    return MCTTree;
+});