Major update to Space Invaders Recreated

- Now officially called "Space Invaders Recreated"
- Sounds now implemented in game
- Fixed bug where shots were generated each loop instead of each beat
- AlienTrackr is now AlienMan, Drawer is now Overseer
- Moved all Bullet tracking to BulletMan
- Game can now pause
UI updates

- screens are now hardcoded to code
- when player gets hit, an animation plays before gameplay resumes
Add main menu, hi scores