Added native Bazel build to GUI2. Reduced a lot of the unused Angular CLI structures

Reviewers should look at the changes in WORKSPACE, BUILD, BUILD.bazel, README.md files
This is only possible now as rules_nodejs went to 1.0.0 on December 20
gui2 has now been made the entry point (rather than gui2-fw-lib)
No tests or linting are functional yet for Typescript
Each NgModule now has its own BUILD.bazel file with ng_module
gui2-fw-lib is all one module and has been refactored to simplify the directory structure
gui2-topo-lib is also all one module - its directory structure has had 3 layers removed
The big bash script in web/gui2/BUILD has been removed - all is done through ng_module rules
in web/gui2/src/main/webapp/BUILD.bazel and web/gui2/src/main/webapp/app/BUILD.bazel

Change-Id: Ifcfcc23a87be39fe6d6c8324046cc8ebadb90551
diff --git a/web/gui2/src/main/webapp/app/view/apps/apps.module.ts b/web/gui2/src/main/webapp/app/view/apps/apps.module.ts
index 464ad3c..76215e5 100644
--- a/web/gui2/src/main/webapp/app/view/apps/apps.module.ts
+++ b/web/gui2/src/main/webapp/app/view/apps/apps.module.ts
@@ -16,10 +16,10 @@
 import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { FormsModule } from '@angular/forms';
-import { AppsRoutingModule } from './apps-routing.module';
+import { RouterModule } from '@angular/router';
 import { AppsComponent } from './apps/apps.component';
 import { AppsDetailsComponent } from './appsdetails/appsdetails.component';
-import { Gui2FwLibModule } from 'gui2-fw-lib';
+import { Gui2FwLibModule } from '../../../../../../../gui2-fw-lib/public_api';
 
 /**
  * ONOS GUI -- Apps View Module
@@ -31,8 +31,9 @@
 @NgModule({
     imports: [
         CommonModule,
-        AppsRoutingModule,
         Gui2FwLibModule,
+        RouterModule,
+        RouterModule.forChild([{path: '', component: AppsComponent}]),
         FormsModule
     ],
     declarations: [