Rockbox

This patch will change snake2 to use external bitmaps. It also changes the playing field sizes to better fit each target. Due to some aspect ratio differences, there is more blank screen space on some targets than others. Compare the h100, h300, and gigabeat builds to see differences. The gigabeat build uses a slightly different arrangement as a demostration. The playing field is larger and there is no excess white space, but the borders are slightly clipped. Compile the sim to see what I mean. Bitmaps should be easy to change and the code is slightly more flexible now on bitmap sizes and string locations on-screen. Someone with better art skills may want to look at the bitmaps since I merely colored and resized the bitmap from the original h100 build.

snake2.diff is the actual patch
bitmaps.zip is a zip file with all the bitmaps included plus the code that needs to be changed in apps/plugins/bitmaps/native/SOURCES