Pgeng

- New Animations object
- New delta_time function
- Added Animations object to Entity
- Added alpha to circle_lighting
- Renamed 'Visual_Effects.py' to 'VFX.py'
- Fixed create_font bug where colour (0, 0, 0) would get an error
- Credited DaFluffyPotato in README.md

- Removed Capitalization of every variable and name
- Added multi line for Font
- Added get_size() function to Font
- Renamed 'VisualEffects.py' to 'Visual_Effects.py'
- Fixed documentation

First pgeng release