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I originally made this for Timothy D.G. but it might be useful to compare the 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)

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 4411    5061  87.2% -lh5- f92b May 15 21:09 CubeBM.info
[generic]                 5524   12720  43.4% -lh5- 7426 Mar 20 02:05 CubeBM/Cube
[generic]                 6081    9274  65.6% -lh5- 069e May 15 21:06 CubeBM/cube.c.info
[generic]                 6252    7761  80.6% -lh5- 5065 May 15 21:02 CubeBM/Cube.info
[generic]                  244     554  44.0% -lh5- 82e9 Mar 20 02:42 CubeBM/cube.readme
[generic]                 4117    4908  83.9% -lh5- fa8b May 15 21:06 CubeBM/cube.readme.info
[generic]                 1727    4640  37.2% -lh5- e7ff May 15 21:18 CubeBM/cube.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         7 files   28356   44918  63.1%            May 17 06:53