Libcod for windows

[Mitch]

I got currently the closer function hooked and i can read parameters from the closer function from the stack. (cod2 1.3)

I cleaned up the code and started merging stuff from libcod.
https://github.com/M-itch/libcod_win

Status:
- Retrieve gsc function parameters: working
- pushStackInt, pushStackString, pushStackFloat, stackPushArray, stackPushArrayLast, pushStackVector: working
- pushStackEntity (get spectatorclient): not working
- mysql support: working
- setvelocity: working
- disableGlobalPlayerCollision: working
- getip, getport: working
- io::print (200): working
- stance: working
- get buttons: untested (likely to work)