Node simplified calculate world matrix code.

Now it is no longer necesary to give the node as an argument.
It is always calculated for the current node.
Skeleton added method get_matrices_for_rotate_keep_end_pos

This methods helps Skeleton fitting to get some matrices for calculations.
SkeletonFitting fix errors on fix_leg_second_lower_joint

This method no longer gives different results on different executions.
It now always rotates the joints as closer as possible to the cloud.
SkeletonController small fix on display_3d_skeleon_cloud call.
Updated CMakeLists to include BonePosFinder and CloudClusterer
SkeletonFitting deleted useless rotation in fix_leg_second_lower_joint
Added Release folder for cmake testing