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/apps/roadm/web/roadm-gui/lib/roadm-gui-lib.module.ts b/apps/roadm/web/roadm-gui/lib/roadm-gui-lib.module.ts
new file mode 100644
index 0000000..7a75fde
--- /dev/null
+++ b/apps/roadm/web/roadm-gui/lib/roadm-gui-lib.module.ts
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2019-present Open Networking Foundation
+ *
+ * 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 { NgModule } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import {RouterModule} from '@angular/router';
+import { Gui2FwLibModule } from '../../../../../web/gui2-fw-lib/public_api';
+import { RoadmDeviceComponent } from './roadm/roadm.component';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { RoadmPortComponent } from './port/port.component';
+
+@NgModule({
+    declarations: [
+        RoadmDeviceComponent,
+        RoadmPortComponent,
+    ],
+    imports: [
+        RouterModule,
+        RouterModule.forChild([{path: 'roadm-port-gui', component: RoadmPortComponent}]),
+        Gui2FwLibModule,
+        CommonModule,
+        FormsModule,
+        ReactiveFormsModule
+    ],
+    exports: [
+        RoadmDeviceComponent,
+        RoadmPortComponent,
+    ]
+})
+export class RoadmGuiLibModule { }