Added BUILD file for gui2-fw-lib bazel build

This is another step along the way of having Native Bazel builds for Angular
Not fully there yet - waiting for Angular v9 in next 2 weeks
but don't want to wait that long to merge all of this

For most people the main concern is updates to WORKSPACE

Change-Id: I28170b8f8daaa2959327c259fe6a10df075113bb
diff --git a/web/gui2-fw-lib/src/app/app.module.ts b/web/gui2-fw-lib/src/app/app.module.ts
index dab7c37..0cdd9fe 100644
--- a/web/gui2-fw-lib/src/app/app.module.ts
+++ b/web/gui2-fw-lib/src/app/app.module.ts
@@ -18,7 +18,7 @@
 import { NgModule } from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 import { AppComponent } from './app.component';
-import { Gui2FwLibModule, ConsoleLoggerService, LogService } from 'gui2-fw-lib';
+import { Gui2FwLibModule, ConsoleLoggerService, LogService } from '../../projects/gui2-fw-lib/src/public_api';
 import {HttpClientModule} from '@angular/common/http';
 import {BrowserAnimationsModule} from '@angular/platform-browser/animations';