Now batches are actually batches.
Also added the MeshFactory class.
Drawing modes are now specified with DrawMode instead of the
GLenum. Renderables must be specified with a draw mode.
This commit gets creates the ObjectOriented scene and gets it
working.
The current test program swaps a triangle from small to large with
the 1 and 2 keys on the keyboard. (1 for small and 2 for large).
The small triangle is rendered by the simple scene and the large
one is rendered by the object oriented one.
Now using GLFW3 instead of the custom window class. This library
looks like it will make development much simpler and will make it
so that I am less worried about my windows code breaking. Currently
setup the http://antongerdelan.net/opengl/hellotriangle.html
tutorial in the MySimpleScene. Will probably create another scene
file to try to get the object oriented stuff working.
