[ADF-ADF-2528] share directive (#3102)

* share file directive

* share link phase 2

* share dialog

* share dialog test

* more documentation

* add more meaningfully specification

* Add  description in the dialog

lib/content-services/directives/content-directive.module.ts

@@ -0,0 +1,40 @@
+/*!
+ * @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.
+ */
+
+import { CommonModule } from '@angular/common';
+import { NgModule } from '@angular/core';
+import { MaterialModule } from '../material.module';
+
+import { NodeDownloadDirective } from './node-download.directive';
+import { NodeSharedDirective } from './node-share.directive';
+
+@NgModule({
+    imports: [
+        CommonModule,
+        MaterialModule
+    ],
+    declarations: [
+        NodeDownloadDirective,
+        NodeSharedDirective
+    ],
+    exports: [
+        NodeDownloadDirective,
+        NodeSharedDirective
+    ]
+})
+export class ContentDirectiveModule {
+}