Obsolete API v0
The catalog-ui and genesys-ui still use some API v0 endpoints.
Make sure that all API v0 endpoints also exist as v1 API endpoints. Methods that are not used by the catalog-ui or genesys-ui can be removed from the v1 controllers.
Also copy unit tests from v0 to v1.
The catalog and genesys React sites use only /api/v1 endpoints.