linka nd include chipmunk physics
no need for sdl mixer anymore
remove corresponding .cmake file.
showcase how to create 1 static body and n shapes attached to it
finally incorporate, in a very cludgy way, to get around the fact that

C doesn't like C++ at all and dealing with its callbacks.
comment crap out...
fix coutn of tiles in viewport, prepare for chipmunk debug rendering..
attempt at mutex hell..