Added NotifyHandler to avoid showing unwanted OSG warnings
Added method to divide legs of the dog naively along axes
Added method in RenderSkeleton to show the result of skeleton fitting
Skeletonfitting, added method to find the front right paw.
SkeletonRenderer added metho to draw at the position of the front right paw
SkeletonFitting added find_head method.
Skeleton moved rotate and scale factors to Skeletoncontroller
Fixed small error on rendering the point clouds.
Added IKAN source code
Added get_global_position method to Node class
Added solve_2_bones method in SkeletonFitting, this method solves
inverse kinematics problema for two bones, where the first joint has
three degrees of freedom and the second one only one.
Added error checking on Skeletonfitting solve_2_bones, still a wip
Added result check in solve_2_bones in SkeletonFitting
solve_2_bones now takes two arguments that indicate which bones are to be solved.
Previously it would only solve for root and first child.
Fixed solve_2_bones to work with any pair of two bones without restrictions.