Updating README
Name change for cog lib
Template in place for opengl renderer
Fully seperated out opengl renderer from rest of code
SDL2 texture rendering onto screen

 - Still to do more complex logic of positioning and scaling using the
   cog coord system
 - Can change between SDL and opengl using #define OPENGL_RENDERING
Animations are working correctly

 - Sprite dimensions are still messed up however
Position seems to be fixed but offset in sprite is off
Added more debug stuff for rendering
X-axis looks okay, y-axis looks off still
Fixed y-axis thing
Adding missing files
Scaling and rotation working with SDL2
Removing cruft
OpenAL working with new structure
Actually adding forgotten files
Adding sdl2_mixer files and started modifying cmakelists
Improving cmake file
Style
Style
Text test working again