[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/insights/insights.module.ts

@@ -16,7 +16,7 @@
  */
 
 import { CommonModule } from '@angular/common';
-import { NgModule } from '@angular/core';
+import { NgModule, ModuleWithProviders } from '@angular/core';
 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { CoreModule, TRANSLATION_PROVIDER } from '@alfresco/adf-core';
 
@@ -24,10 +24,23 @@ import { DiagramsModule } from './diagram/diagram.module';
 import { AnalyticsProcessModule } from './analytics-process/analytics-process.module';
 
 import { MaterialModule } from './material.module';
+import { DiagramsService } from './diagram/services/diagrams.service';
+import { DiagramColorService } from './diagram/services/diagram-color.service';
+import { RaphaelService } from './diagram/components/raphael/raphael.service';
+import { AnalyticsService } from './analytics-process/services/analytics.service';
+
+export function providers() {
+    return [
+        AnalyticsService,
+        DiagramsService,
+        DiagramColorService,
+        RaphaelService
+    ];
+}
 
 @NgModule({
     imports: [
-        CoreModule,
+        CoreModule.forChild(),
         CommonModule,
         FormsModule,
         ReactiveFormsModule,
@@ -36,6 +49,7 @@ import { MaterialModule } from './material.module';
         AnalyticsProcessModule
     ],
     providers: [
+        ...providers(),
         {
             provide: TRANSLATION_PROVIDER,
             multi: true,
@@ -46,7 +60,6 @@ import { MaterialModule } from './material.module';
         }
     ],
     exports: [
-        CoreModule,
         CommonModule,
         FormsModule,
         ReactiveFormsModule,
@@ -56,4 +69,47 @@ import { MaterialModule } from './material.module';
     ]
 })
 export class InsightsModule {
+    static forRoot(): ModuleWithProviders {
+        return {
+            ngModule: InsightsModule,
+            providers: [
+                ...providers(),
+                {
+                    provide: TRANSLATION_PROVIDER,
+                    multi: true,
+                    useValue: {
+                        name: 'adf-insights',
+                        source: 'assets/adf-insights'
+                    }
+                }
+            ]
+        };
+    }
+
+    static forChild(): ModuleWithProviders {
+        return {
+            ngModule: InsightsModuleLazy
+        };
+    }
 }
+
+@NgModule({
+    imports: [
+        CoreModule.forChild(),
+        CommonModule,
+        FormsModule,
+        ReactiveFormsModule,
+        MaterialModule,
+        DiagramsModule,
+        AnalyticsProcessModule
+    ],
+    exports: [
+        CommonModule,
+        FormsModule,
+        ReactiveFormsModule,
+        MaterialModule,
+        DiagramsModule,
+        AnalyticsProcessModule
+    ]
+})
+export class InsightsModuleLazy {}