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.
In the previous version, the nodes get selected and copied, without lost selection after new nodes pasted.
This commit fix this problem. Now, the old nodes lose selection while new pasted nodes gettting selected.
This feature will make the following use case much easier:
Extrude:
Select some nodes, copy, paste then scale.
Jeremy Hu