Flappy Bird

### Description

Our final game, flappy bird! Note that this is dependent on the designers time, but for the developer side we will get it finalized. For now, just like last time create your own mock frontend to show the game functionality.

### Acceptance Criteria

- Flappy bird has been added
- The character will be the "bird"
- Make sure the pipes are consistent and easy to add on the developer side
- Add stats for flappy bird on the backend (connection for backend-frontend is another ticket, so just worry about backend for now)

### Other Notes

N/A