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/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..a1a4239
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,28 @@
+// TODO Move this out of the root directory if possible -
+{
+
+  "compileOnSave": false,
+  "compilerOptions": {
+    "baseUrl": "./web/gui2-fw-lib/",
+    "outDir": "./web/gui2-fw-lib/dist/out-tsc",
+    "sourceMap": true,
+    "declaration": false,
+    "downlevelIteration": true,
+    "experimentalDecorators": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "importHelpers": true,
+    "target": "es2015",
+    "typeRoots": [
+      "node_modules/@types"
+    ],
+    "lib": [
+      "es2018",
+      "dom"
+    ]
+  },
+  "angularCompilerOptions": {
+    "fullTemplateTypeCheck": true,
+    "strictInjectionParameters": true
+  }
+}