Want to use seperate textures and samplers for the scene to allow
for more modularization. Currently have created a texture class
and started creating a scene class.
Now, LitScene allows for simple lighting. (Shadows still to come).
Ambient, specular, and diffuse lighting available and each mesh's
vertex can define a material that defines its reflectivity. An
example scene was added to the MyApplication as the scene for the
6 button.
