It compiles on Windows huzzah!

Added a CMakeLists.txt so we can compile with CMake.

I don't know if it compiles on Mac anymore (I don't own one so I can't
say), but I'm sure you can hack at the CMake file to get it working.

Also reorganized the repo and cut out a lot of unnecessary files. If you
need the examples you've probably already downloaded them when you
downloaded FMOD.