Changes to Who this key is (whoami)

added the new known_of_not_writable enum value to the error/code response property for the response status 401

added the new known_of_not_writable enum value to the error/code response property for the response status 429

added the new known_of_not_writable enum value to the error/code response property for the response status 503

added the new character_taken enum value to the error/code response property for the response status 401

added the new character_taken enum value to the error/code response property for the response status 429

added the new character_taken enum value to the error/code response property for the response status 503

added the new world_full enum value to the error/code response property for the response status 401

added the new world_full enum value to the error/code response property for the response status 429

added the new world_full enum value to the error/code response property for the response status 503