refactor: move public api golden files under golden directory

(cherry picked from commit fdbd49a)

Author: alan-agius4

.prettierignore

@@ -1,7 +1,7 @@
 /bazel-out/
 /docs/design/analytics.md
 /dist-schema/
-/etc/api/
+/goldens/public-api
 /packages/angular_devkit/build_angular/test/
 /packages/angular_devkit/core/src/workspace/json/test/
 /tests/

CONTRIBUTING.md

@@ -288,18 +288,18 @@ To test if your change effect the public API you need to run the API guardian on
 For example in case `@angular-devkit/core` package was modified you need to run:
 
 ```bash
-yarn bazel test //etc/api:angular_devkit_core_api
+yarn bazel test //goldens/public-api:angular_devkit_core_api
 ```
 
 You can also test all packages by running:
 ```bash
-yarn bazel test //etc/api ...
+yarn bazel test //goldens/public-api ...
 ```
 
 If you modified the public API, the test will fail. To update the golden files you need to run:
 
 ```bash
-yarn bazel run //etc/api:angular_devkit_core_api.accept
+yarn bazel run //goldens/public-api:angular_devkit_core_api.accept
 ```
 
 **Note**: In some cases we use aliased symbols to create namespaces.

etc/README.md

@@ -29,7 +29,7 @@ load("@npm//ts-api-guardian:index.bzl", "ts_api_guardian_test")
             bundle[1],
         ),
     ],
-    golden = "angular_cli/etc/api/%s/%s/%s.d.ts" % (
+    golden = "angular_cli/goldens/public-api/%s/%s/%s.d.ts" % (
         bundle[0],
         bundle[1],
         bundle[2],