[ADF-1881] Consolidate NodeService and NodesApiService (#5591)

* [ADF-1881] Consolidate NodeService and NodesApiService

* * docs added

lib/core/models/node-metadata.model.ts

@@ -0,0 +1,26 @@
+/*!
+ * @license
+ * Copyright 2019 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 class NodeMetadata {
+    metadata: any;
+    nodeType: string;
+
+    constructor(metadata: any, nodeType: string) {
+        this.metadata = metadata;
+        this.nodeType = nodeType;
+    }
+}

lib/core/models/public-api.ts

@@ -34,3 +34,4 @@ export * from './identity-user.model';
 export * from './identity-role.model';
 export * from './identity-group.model';
 export * from './search-text-input.model';
+export * from './node-metadata.model';