feat!(sdbapi): restructure, expand user details

fix(sdbapi): name fields correctly in JSON

feat(sdbapi): add GAMESTATE_CANCELLED

WIP(sdbapi): actions table

WIP(sdbapi): game creation API

feat(sdbapi): replace gorm.Model with own fields

feat(sdbapi): init game management apis

Basic API with register and login (#1)

Reviewed-on: https://src.quest/skye/deck-builder/pulls/1