Colorful rotating MiniGL cube which prints FPS benchmarks on exit.

Based on the OpenGL cube demo by Mark J. Kilgard, with added lighting, 
colors, keypad controls, and statistics.

I originally made this for Timothy D.G. but it might be useful to
compare the 3D acceleration on various gfx cards so here it is.

On my Radeon 7500PE w/128MB RAM I get:

77850 frames drawn in 131.3 seconds
 1037 fps (0.964 milliseconds per frame)
  594 fps (1.683 milliseconds per frame with swap)