[ADF-2232] Content metadata layout oriented configuration (#2918)

* Small refactoring I.

* Small refactoring II.

* On the way of implementing the soultion

* Refactoring aspect to groups and supporting different type of configs

* Fixed linter errors

* Fix debug project runner

* Fix linting errors

* Fix and align tests

* Config factory tests

* Layout oriented config parser

* Adding layout oriented config to the config factory

* Update config schema

* Layout oriented config

* Aspect oriented and indifferent configs alignment to the new propertyGroups structure

* Remove dead codes

* Fixinfinite loading error and custom type properties

* Add documentation

* Fix tests

lib/content-services/content-metadata/interfaces/layout-oriented-config.interface.ts

@@ -0,0 +1,29 @@
+/*!
+ * @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 LayoutOrientedConfigItem {
+    aspect?: string;
+    type?: string;
+    properties: string | string[];
+}
+
+export interface LayoutOrientedConfigLayoutBlock {
+    title: string;
+    items: LayoutOrientedConfigItem[];
+}
+
+export interface LayoutOrientedConfig extends Array<LayoutOrientedConfigLayoutBlock> {}