[ADF-3380] lazy loading fixes (#3609)

* lazy loading file viewer

* fix issue with CoreModule referencing

* fix issue with app config and lazy loading

* test fixes

* fix import

* lazy loading workaround for content module

* fix providers for lazy loading

* fix tests

* lazy loading for Process Services lib

* lazy loading for Insights, module cleanup

* fix issue with Translate module, optimise imports

* lazy-load blob viewer (demo shell)

* remove duplicate pdf init

* update to more stable pdfjs

* fix license header

* fix lint issues

* fix test import

* fix pdf version

lib/process-services/content-widget/attach-file-widget.components.spec.ts

@@ -29,7 +29,7 @@ import {
     ContentService,
     setupTestBed
 } from '@alfresco/adf-core';
-import { ContentNodeDialogService, ContentNodeSelectorModule } from '@alfresco/adf-content-services';
+import { ContentNodeDialogService, ContentModule } from '@alfresco/adf-content-services';
 import { of } from 'rxjs';
 import { MinimalNodeEntryEntity } from 'alfresco-js-api';
 import { ProcessTestingModule } from '../testing/process.testing.module';
@@ -104,7 +104,10 @@ describe('AttachFileWidgetComponent', () => {
     let formService: FormService;
 
     setupTestBed({
-        imports: [ProcessTestingModule, ContentNodeSelectorModule]
+        imports: [
+            ProcessTestingModule,
+            ContentModule.forRoot()
+        ]
     });
 
     beforeEach(async(() => {

lib/process-services/content-widget/content-widget.module.ts

@@ -24,7 +24,7 @@ import { AttachFolderWidgetComponent } from './attach-folder-widget.component';
 
 @NgModule({
     imports: [
-        CoreModule,
+        CoreModule.forChild(),
         MaterialModule
     ],
     entryComponents: [