Fattty v0.04 Update

Patch Notes:

- Added start screen

- Added controls to pause screen

- Added an energy meter for phase and speed boost

- Added a poop meter that fills up when eating(you can't eat while poop meter is full)

- Poop size is dependent on player size and fill amount of poop meter.

- Put food above poop on display layer

- New enemies spawn every 20 seconds