[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/content-services/site-dropdown/sites-dropdown.module.ts

@@ -18,18 +18,18 @@
 import { CommonModule } from '@angular/common';
 import { NgModule } from '@angular/core';
 import { MaterialModule } from '../material.module';
-import { TranslateModule } from '@ngx-translate/core';
 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 
 import { DropdownSitesComponent } from './sites-dropdown.component';
+import { CoreModule } from '@alfresco/adf-core';
 
 @NgModule({
     imports: [
         CommonModule,
         MaterialModule,
-        TranslateModule,
         FormsModule,
-        ReactiveFormsModule
+        ReactiveFormsModule,
+        CoreModule.forChild()
     ],
     exports: [
         DropdownSitesComponent