[ADF-3456] DocumentList - context menu (#3694)

* refactor context menu

* prune log

* remove fdescribe

* remove undescore from private

* fix e2e action buttons

* fix trailing space

* remove fdescribe

lib/core/context-menu/interfaces.ts

@@ -0,0 +1,24 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+export interface ContextMenuOverlayConfig {
+    panelClass?: string;
+    hasBackdrop?: boolean;
+    backdropClass?: string;
+    source?: MouseEvent;
+    data?: any;
+}