Font Rendering and GUI Updates
* Added Freetype Font Rendering
* Continued work on the GUI
* Added FPS and UPS trackers in the Engine Loop
* Renamed a few variables
Small Fixes to Font Rendering
Started work on configuration files
* Using rapidxml to parse xml config files
* Preparing for skeletal animation

Might have to do some major cleanup soon.
Code is starting to get messy, and no one likes messy code!
But it's messy because I do a lot of experimentation.
C++ isn't my main language ^^