Mark FieldRealtime::GetCurrentPuyo and GetNextPuyo as deprecated.
Remove GetCurrentPuyo from Game::GetFieldInfo.
Remove GetCurrentPuyo from GameState::toJson.
Remove GetCurrentPuyo from FieldRealtime::GetKey and Chigiri
Remove GetCurrentPuyo from Field::PlayInternal.
Remove GetPuyoColor from FieldRealtime::GetYokokuInfo.