create team owned libs for billing, admin-console, platform (#7233)

* add admin-console lib files

* add billing lib files

* add platform lib files

* update lib references in config files

* update package-lock

libs/platform/tsconfig.spec.json

@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig.json",
+  "files": ["./test.setup.ts"]
+}