Returns a specification to start this module under a supervisor.

See Supervisor.

@spec init({Buzzword.Bingo.Game.name(), Buzzword.Bingo.Game.size()}) ::
  {:ok, Buzzword.Bingo.Game.t(), timeout()}

Callback implementation for GenServer.init/1.

@spec start_link({Buzzword.Bingo.Game.name(), Buzzword.Bingo.Game.size()}) ::
  GenServer.on_start()

Spawns a game server process to be registered via a game name.

@spec via(Buzzword.Bingo.Game.name()) :: {:via, Registry, tuple()}

Allows to register or look up a game server process via game_name.