This moves the generated pb files to the `sdk` module. This allows third parties to make use of them if desired (e.g. in upcoming plugins) and moves away from the `gen` nomenclature in the directory, since we are going to be adding some extra interface functions to the messages.
This keeps only essential information in list output for auth methods
when the user is u_anon. Boundary's default is to allow listing of
auth methods for anonymous users to allow discovery of authentication
points, but there's no need to return more information about internal
configuration than necessary.
Jeff Mitchell
Jim
