- full screen mode v0.1
 - Point class is now Vector2
 - viewport setting added
 - Vector2 utility methods added to be used as dimension/size object
 - min/max value methods added to vector
 - major refactoring
  - separate files for the different game classes
  - Engine class introduced (captures mouse, creates render loop, etc)
  - all ring types now "inherit" from Ring
  - FPS counter doesn't yet work