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/BUILD b/BUILD
index 49aabfa..b70aef7 100644
--- a/BUILD
+++ b/BUILD
@@ -180,7 +180,9 @@
     name = "buildifier_check",
     exclude_patterns = [
         "./tools/build/bazel/generate_workspace.bzl",
-        "./web/gui2-fw-lib/node_modules/@angular/bazel/src/esm5.bzl",
+        "./web/gui2/node_modules/@angular/bazel/src/esm5.bzl",
+        "./web/gui2/node_modules/@bazel/typescript/internal/common/tsconfig.bzl",
+        "./web/gui2/node_modules/@bazel/typescript/internal/common/compilation.bzl",
     ],
     mode = "check",
 )
@@ -189,7 +191,9 @@
     name = "buildifier_fix",
     exclude_patterns = [
         "./tools/build/bazel/generate_workspace.bzl",
-        "./web/gui2-fw-lib/node_modules/@angular/bazel/src/esm5.bzl",
+        "./web/gui2/node_modules/@angular/bazel/src/esm5.bzl",
+        "./web/gui2/node_modules/@bazel/typescript/internal/common/tsconfig.bzl",
+        "./web/gui2/node_modules/@bazel/typescript/internal/common/compilation.bzl",
     ],
     mode = "fix",
 )