OpenGL Support module

Detailed Description

This module provides wrapper functions for a couple of OpenGL functions which simplify the way to pass Eigen's object to openGL. Here is an exmaple:

* // You need to add path_to_eigen/unsupported to your include path.
* #include <Eigen/OpenGLSupport>
* // ...
* Vector3f x, y;
* Matrix3f rot;
* 
* glVertex(y + x * rot);
* 
* Quaternion q;
* glRotate(q);
* 
* // ...
*