[Edit] Restructure source folder

Restructure sources associated with Edit mode; work on
WTD-788 has increased number of sources here so more
organization is useful.

platform/commonUI/edit/src/controllers/EditActionController.js

@@ -0,0 +1,33 @@
+/*global define,Promise*/
+
+/**
+ * Module defining EditActionController. Created by vwoeltje on 11/17/14.
+ */
+define(
+    [],
+    function () {
+        "use strict";
+
+        var ACTION_CONTEXT = { category: 'conclude-editing' };
+
+        /**
+         * Controller which supplies action instances for Save/Cancel.
+         * @constructor
+         */
+        function EditActionController($scope) {
+            // Maintain all "conclude-editing" actions in the present
+            // context.
+            function updateActions() {
+                $scope.editActions = $scope.action ?
+                        $scope.action.getActions(ACTION_CONTEXT) :
+                        [];
+            }
+
+            // Update set of actions whenever the action capability
+            // changes or becomes available.
+            $scope.$watch("action", updateActions);
+        }
+
+        return EditActionController;
+    }
+);

platform/commonUI/edit/src/controllers/EditController.js

@@ -0,0 +1,34 @@
+/*global define,Promise*/
+
+/**
+ * Module defining EditController. Created by vwoeltje on 11/14/14.
+ */
+define(
+    ["../objects/EditableDomainObject"],
+    function (EditableDomainObject) {
+        "use strict";
+
+        /**
+         * Controller which is responsible for populating the scope for
+         * Edit mode; introduces an editable version of the currently
+         * navigated domain object into the scope.
+         * @constructor
+         */
+        function EditController($scope, navigationService) {
+            function setNavigation(domainObject) {
+                // Wrap the domain object such that all mutation is
+                // confined to edit mode (until Save)
+                $scope.navigatedObject =
+                    domainObject && new EditableDomainObject(domainObject);
+            }
+
+            setNavigation(navigationService.getNavigation());
+            navigationService.addListener(setNavigation);
+            $scope.$on("$destroy", function () {
+                navigationService.removeListener(setNavigation);
+            });
+        }
+
+        return EditController;
+    }
+);