This change adds the following new resource implementations: - ArchivedReviewRequestItemResource - ArchivedReviewRequestListResource - MutedReviewRequestItemResource - MutedReviewRequestListResource These resources are special because they do not support GET operations, and the regular links introspection therefore doesn't work. The implementation of these is therefore done as a custom layer that allows us to get a "bare" instance of the resource, which can then be used for `create` or `delete` as appropriate. Testing Done: - Ran unit tests. - Used the new resources from a test script and saw that everything worked as expected.