Refactor outcome. Move processes of outcome to separated files, and leave the outcome class as clean as possible.
Normal export in glb format is been fixed.
Ambient occlusion baker is been temporarily removed.
The normals haven't fix yet, this commit is mainly preparing for the next coming commits about animation export.
The glTF text format abandoned for the binary format.
Add a crc64 hash check for history keeping to avoid repeated snapshot.
Besides, before, there is a logic error in the undo implementation, which recover the most recent snapshot from undo stack, so user need undo twice and at the second undo get the expected result. This incorrect behavior got fixed.
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.
Jeremy Hu