Commit the .c file to repo for the convenience of people without Cython
Add a little test script
Actually use libtcod, woot! Note that it depends on the exact setup I have.

The libtcod dev files don't play nicely with a full system. You're expected to
copy a bunch of stuff into your own project. I've opted instead to add include
and library dirs, so I'm assuming you have libtcod-1.6.0 the same way I do. If
this isn't the case, well, play around with it and have fun.