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/host/BUILD.bazel b/web/gui2/src/main/webapp/app/view/host/BUILD.bazel
new file mode 100644
index 0000000..78f486f
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/view/host/BUILD.bazel
@@ -0,0 +1,46 @@
+"""
+ Copyright 2020-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.
+"""
+
+package(default_visibility = ["//:__subpackages__"])
+
+load("@npm_angular_bazel//:index.bzl", "ng_module")
+
+ng_module(
+    name = "gui2-view-host",
+    srcs = glob(
+        include = [
+            "**/*.ts",
+        ],
+        exclude = [
+            "**/*.spec.ts",
+        ],
+    ),
+    assets = glob([
+        "**/*.css",
+        "**/*.html",
+    ]),
+    module_name = "gui2-view-host",
+    deps = [
+        "//web/gui2-fw-lib",
+        "@npm//@angular/animations",
+        "@npm//@angular/core",
+        "@npm//@angular/forms",
+        "@npm//@angular/platform-browser-dynamic",
+        "@npm//@angular/router",
+        "@npm//@types",
+        "@npm//rxjs",
+    ],
+)
diff --git a/web/gui2/src/main/webapp/app/view/host/host-routing.module.ts b/web/gui2/src/main/webapp/app/view/host/host-routing.module.ts
deleted file mode 100644
index 01cdd8f..0000000
--- a/web/gui2/src/main/webapp/app/view/host/host-routing.module.ts
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
-* Copyright 2018-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 { Routes, RouterModule } from '@angular/router';
-import { HostComponent } from './host/host.component';
-
-const hostRoutes: Routes = [
-    {
-        path: '',
-        component: HostComponent
-    }
-];
-
-@NgModule({
-    imports: [RouterModule.forChild(hostRoutes)],
-    exports: [RouterModule]
-})
-export class HostRoutingModule { }
diff --git a/web/gui2/src/main/webapp/app/view/host/host.module.ts b/web/gui2/src/main/webapp/app/view/host/host.module.ts
index 2bb8321..1873fce 100644
--- a/web/gui2/src/main/webapp/app/view/host/host.module.ts
+++ b/web/gui2/src/main/webapp/app/view/host/host.module.ts
@@ -16,15 +16,16 @@
 import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
 
-import { HostRoutingModule } from './host-routing.module';
 import { HostComponent } from './host/host.component';
-import { Gui2FwLibModule } from 'gui2-fw-lib';
+import { Gui2FwLibModule } from '../../../../../../../gui2-fw-lib/public_api';
 import { HostDetailsComponent } from './hostdetails/hostdetails.component';
+import {RouterModule} from '@angular/router';
 
 @NgModule({
     imports: [
         CommonModule,
-        HostRoutingModule,
+        RouterModule,
+        RouterModule.forChild([{path: '', component: HostComponent}]),
         Gui2FwLibModule
     ],
     declarations: [HostComponent, HostDetailsComponent]
diff --git a/web/gui2/src/main/webapp/app/view/host/host/host.component.ts b/web/gui2/src/main/webapp/app/view/host/host/host.component.ts
index bf692a2..22c0e58 100644
--- a/web/gui2/src/main/webapp/app/view/host/host/host.component.ts
+++ b/web/gui2/src/main/webapp/app/view/host/host/host.component.ts
@@ -19,7 +19,7 @@
     LogService,
     WebSocketService,
     SortDir, TableBaseImpl, TableResponse
-} from 'gui2-fw-lib';
+} from '../../../../../../../../gui2-fw-lib/public_api';
 
 interface HostTableResponse extends TableResponse {
     hosts: Host[];
@@ -43,7 +43,7 @@
     selector: 'onos-host',
     templateUrl: './host.component.html',
     styleUrls: ['./host.component.css',
-        '../../../fw/widget/table.css', '../../../fw/widget/table.theme.css']
+        '../../../../../../../../gui2-fw-lib/lib/widget/table.css', '../../../../../../../../gui2-fw-lib/lib/widget/table.theme.css']
 })
 export class HostComponent extends TableBaseImpl implements OnInit, OnDestroy {
 
diff --git a/web/gui2/src/main/webapp/app/view/host/hostdetails/hostdetails.component.ts b/web/gui2/src/main/webapp/app/view/host/hostdetails/hostdetails.component.ts
index 5e70270..50af4f6 100644
--- a/web/gui2/src/main/webapp/app/view/host/hostdetails/hostdetails.component.ts
+++ b/web/gui2/src/main/webapp/app/view/host/hostdetails/hostdetails.component.ts
@@ -21,7 +21,7 @@
     LogService,
     DetailsPanelBaseImpl,
     WebSocketService
-} from 'gui2-fw-lib';
+} from '../../../../../../../../gui2-fw-lib/public_api';
 
 /**
  * The details view when a host row is clicked from the Host view
@@ -39,7 +39,7 @@
     selector: 'onos-hostdetails',
     templateUrl: './hostdetails.component.html',
     styleUrls: ['./hostdetails.component.css',
-        '../../../fw/widget/panel.css', '../../../fw/widget/panel-theme.css'
+        '../../../../../../../../gui2-fw-lib/lib/widget/panel.css', '../../../../../../../../gui2-fw-lib/lib/widget/panel-theme.css'
     ],
     animations: [
         trigger('hostDetailsState', [