Logitech c200 camera mount for “rPi camera ball and socket” system

See the `readme.pdf` for more details.

The short version:

There was no "good" way for me to mount an old web cam (logitech c200) to my 3d printer. The camera PCB has weird geometry, so i made a "sparse" frame to clip the PCB in and added an adapter part so it could be used with the rpi camera ball and socket system as well as the prusa mk3s arm.