Add my own version of gluLookAt() (which is nearly identical to the

Add my own version of gluLookAt() (which is nearly identical to the
Mesa/glu version.)  But, by calculating the Model View matrix our selves
we can save this matrix without having to read it back in from the video
card.  This hopefully allows us to save a few cpu cycles when rendering
out the fragments because we can just use glLoadMatrixd() with the
precalculated matrix for each tile rather than doing a push(), translate(),
pop() for every fragment.

Panel status defaults to off for now until it gets a bit more developed.

Extract OpenGL driver info on initialization.