removed unused variables.

RenderEngine.h added to git repo

RenderEngine.cpp added to git repo

started working on a renderer class to handle automatic rendering of the physics scene using render quality meshes instead of rendering the collision meshes

Started work on Aerodynamic objects (for disc golf or flight sim game)

I fixed the transformations problem. It wasn't broken, I was just using quaternions incorrectly (I had forgotten that w is cos(theta/2) and not cos(theta).

Implemented height fields (untested)

Added nullptr check to paddle update code in Driver

added PxGL.h to define OpenGL functions that take PhysX types

Changed to 16x MSAA

Fixed rotation code by using the methods of the quaternion class that convert to and from axis angles (in radians) and using degree to radian conversions as necessary

Changed quit to be atomic so that I don't need to use a lock in the updateloop

Added support for RigidStatic actors

Changed PhysicsEngine API to allow more freedom with the PhysX API:

Implemented Capsule Moment of Inertia function