Many source file name and data type are prefixed by "skeleton" before, now all are refactored.
The class MeshResultContext represents the outcome of mesh generation before, now we have material, pose and animation, so we just rename it as Outcome.
- Implement CCD (Cyclic Coordinate Descent) IK (Inverse Kinematics) algorithm
- Add end-effector pulling operation, this would be useful when you want to pull a group of nodes in line to align straight or mimic curl.