Added code to draw lines between the joints marked by the user
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Draw lines between joints is now multiframe
Fixed minor mistakes on skeleton fit controller logic.
Bone lines are thicker now, and instead of squares, we draw spheres in the joints.
Changed distance the points are moved inside the dog body.
Instead of lines bones are cilinders now. Joint spheres are bigger.
Added frame saving to disk.
When a joint is change, it is now updated inmidiately.
change joint color to grey, deactivate light in joints.
Renamed SkeletonFitController to SkeletonController
SkellController now manages SkelRenderer
Move more logic to controller from renderer.
More logic moved to controller and more drawing to renderer. could still be improved.