v0.9.1a

Action Items - v0.9.1a:

- finish the AI component (random vs. smart)
- UI setttings configuration (sound - choice of background sound or no
sound, name/user, colors - provide 9 choices)
- Develop multiplayer backend
- Create scoreboard server and api (php/mysql)

Completed:

- Featue implementation: Setup MainScene Singleton for tracking
score, turns, user/guest, number of games played, reset
- Win and Loss layers