QC support

[SupinePandora43]

as SourceOps generates QC file. you need to support all qc commands :open_mouth: or add option for custom commands to qc file

[bonjorno7]

I need to come up with a UI for custom commands yeah, or at least allow you to include a blender text object.

[g0g5]

$jigglebone support is desperately needed 😢 because there are increasingly numerous models with large amount of physics-simulated parts