fix(sdbapi): patchgamestate check for guest

feat(sdbapi): patchgamestate checks, formatting

feat(sdbclient): update my_games to new standards

feat(sdbapi): return whole game from create game

fix(sdbapi): return empty json from join

feat!(sdbapi): restructure, expand user details

fix(sdbapi): simplify returns for game endpoints

feat(sdbapi): return EndedAt from gameinfo

feat(sdbapi): new error handling

feat(sdbapi): endpoint for joining games

feat(sdbapi): endpoint for getting own games

feat(sdbapi): endpoint for patching game state

fix(sdbapi): remove redundant checks for user

feat(sdbapi): endpoint for all forming games

WIP(sdbapi): get all forming games

feat(sdbapi): simplify verifying if a user exists

WIP(sdbapi): game creation API

feat(sdbapi): helper for getting user by email

feat!(sdbapi): change errors to apierror

WIP(sdbapi): game info API endpoint