Batch retargeting system

Built a batch retargeting system suitable for different characters, integrated multiple animations into single character in single scene through animation layers, and unified the skeleton hierarchy and the remapping preset of source animations. Ensured the stability of the entire pipeline >99%

Retarget problems

Diff gender (diff skeleton) retarget

Retarget multiple animations on a single skeleton in a single scene

Remap preset

Animation layer
Edit and merge multi animations into one animation layer