move adf-extensions lib to the ADF repo (#3781)

* adf-extensions lib

* remove console.log calls

* integrate with angular.json

* fix output path

* update scripts

* Add extensions to scripts

* update travis setup

* Travis step II.

lib/extensions/src/lib/components/dynamic-component/dynamic.component.ts

@@ -0,0 +1,67 @@
+/*!
+ * @license
+ * Copyright 2016 - 2018 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 {
+    Component,
+    Input,
+    ComponentRef,
+    OnInit,
+    ComponentFactoryResolver,
+    ViewChild,
+    ViewContainerRef,
+    OnDestroy
+} from '@angular/core';
+import { ExtensionService } from '../../services/extension.service';
+
+@Component({
+    selector: 'adf-dynamic-component',
+    template: `<div #content></div>`
+})
+export class DynamicExtensionComponent implements OnInit, OnDestroy {
+    @ViewChild('content', { read: ViewContainerRef })
+    content: ViewContainerRef;
+
+    @Input() id: string;
+
+    private componentRef: ComponentRef<any>;
+
+    constructor(
+        private extensions: ExtensionService,
+        private componentFactoryResolver: ComponentFactoryResolver
+    ) {}
+
+    ngOnInit() {
+        const componentType = this.extensions.getComponentById(this.id);
+        if (componentType) {
+            const factory = this.componentFactoryResolver.resolveComponentFactory(
+                componentType
+            );
+            if (factory) {
+                this.content.clear();
+                this.componentRef = this.content.createComponent(factory, 0);
+                // this.setupWidget(this.componentRef);
+            }
+        }
+    }
+
+    ngOnDestroy() {
+        if (this.componentRef) {
+            this.componentRef.destroy();
+            this.componentRef = null;
+        }
+    }
+}