Purity Update

Done:

• Old FMOD 3.75 code removed.
• Room graphics switched to OpenGL.
• Collision Detection rebuilt and enhanced.
• Edge Gravity Added.
• "Skill Jump" added (jump at the peak of the second jump, three frame tolerance).
• Added FMOD Ex, jumping sounds (1, 2, skill, skill fail).
  

Todo:

• Update falling platforms and related add new collision detection
  
• Update gun class.
• Update powerups class.
• Add new sprite class.
  
• Update room file format to include guns, powerups, save points, platforms, and potential other things.
• Update save file with a list of powerups gotten (this will be more helpful than it sounds).
• Make BMP to Map converter.