extract material libs to a separate module (#437)

src/app/app.module.ts

@@ -66,7 +66,6 @@ import { BrowsingFilesService } from './common/services/browsing-files.service';
 import { ContentManagementService } from './common/services/content-management.service';
 import { NodeActionsService } from './common/services/node-actions.service';
 import { NodePermissionService } from './common/services/node-permission.service';
-import { MatMenuModule, MatIconModule, MatButtonModule, MatDialogModule, MatInputModule } from '@angular/material';
 import { SearchComponent } from './components/search/search.component';
 import { SettingsComponent } from './components/settings/settings.component';
 import { HybridAppConfigService } from './common/services/hybrid-app-config.service';
@@ -78,6 +77,7 @@ import { EditFolderDirective } from './directives/edit-folder.directive';
 import { CreateFolderDirective } from './directives/create-folder.directive';
 import { DownloadNodesDirective } from './directives/download-nodes.directive';
 import { AppStoreModule } from './store/app-store.module';
+import { MaterialModule } from './material.module';
 
 
 @NgModule({
@@ -90,11 +90,7 @@ import { AppStoreModule } from './store/app-store.module';
             useHash: true,
             enableTracing: false // enable for debug only
         }),
-        MatMenuModule,
-        MatIconModule,
-        MatButtonModule,
-        MatDialogModule,
-        MatInputModule,
+        MaterialModule,
         CoreModule,
         ContentModule,
         ElectronModule,

src/app/material.module.ts

@@ -0,0 +1,44 @@
+/*!
+ * @license
+ * Alfresco Example Content Application
+ *
+ * Copyright (C) 2005 - 2018 Alfresco Software Limited
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail.  Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import { NgModule } from '@angular/core';
+import {
+    MatMenuModule,
+    MatIconModule,
+    MatButtonModule,
+    MatDialogModule,
+    MatInputModule
+} from '@angular/material';
+
+@NgModule({
+    imports: [
+        MatMenuModule,
+        MatIconModule,
+        MatButtonModule,
+        MatDialogModule,
+        MatInputModule
+    ]
+})
+export class MaterialModule {}