SDL Inteface for POGL and macro refactor

Hey Chris,

How do I make SDL an interface for POGL?

https://github.com/PerlGameDev/POGL/commit/4ed41515474f67cb2af553be9cf0132741594a40

I want to turn off GLUT and all that when SDL is chosen. 	

Also in the TODO I noticed you wanted:


> https://github.com/PerlGameDev/POGL/blob/SDL_interface/TODO#L28

common macro in one place.

In SDL we put this in one header, would that work?


-- 
Kartik Thakore <thakore.kartik@gmail.com>

• SDL Inteface for POGL and macro refactor by Kartik Thakore
• Re: SDL Inteface for POGL and macro refactor by chm
• Re: SDL Inteface for POGL and macro refactor by My