Skulls, bones and muscles

After the embedding on the Social Contract Framework, the Skull and Bones feature now is back on track. I have implemented the base functionality and the scaling bones feature.
Rotation and Translation will still not working for now, but soon they will be back on track too.

Among all the benches, there are no “Bench press”, and among all the hacks, no squat hack. So this guy was left only with the pulleys for building elevators to train with: