[ACA-1809] app header extensions (#659)

* move header to separate component

* code fixes

* project header buttons and menus

* app menu example

* delete empty style

* logout action

* update docs

* and one more test

src/app/components/header/header.module.ts

@@ -0,0 +1,45 @@
+/*!
+ * @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 { CommonModule } from '@angular/common';
+import { CoreModule } from '@alfresco/adf-core';
+import { AppHeaderComponent } from './header.component';
+import { AppCurrentUserModule } from '../current-user/current-user.module';
+import { AppSearchInputModule } from '../search/search-input.module';
+import { AppToolbarModule } from '../toolbar/toolbar.module';
+
+@NgModule({
+  imports: [
+    CommonModule,
+    CoreModule.forChild(),
+    AppCurrentUserModule,
+    AppSearchInputModule,
+    AppToolbarModule
+  ],
+  declarations: [AppHeaderComponent],
+  exports: [AppHeaderComponent]
+})
+export class AppHeaderModule {}