Plugins Clothing ReWrapper

• Added configurable selection area, based on triangle adjacency.
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  • Limited at 100 for now, though it gets quite slow at that point.
  • Overlap between preview and selected area now colored black.
• A few internal performance improvements

Didn't quite get material selection working. Will hopefully get that out tomorrow.

I had to rush this one so it might be a little rough. Hopefully this update does more good than harm.

• Added symmetric selection for the skin
• Added an 'inverted' mode, where it will wrap to everything BUT the selected vertices
• Added an initial version of cloth selection, which allows specifying which cloth vertices to re-wrap (rather than all)
• Running the re-wrapper without anything selected will just wrap with no constraints.
  • This can still be useful since it applies surface offsets that allow 'internal' clothing to work without the Internal Clothing Fix https://hub.virtamate.com/resources/internal-clothing-fix.35753
• Littered the code with ungodly heresies that'll need to be cleaned up later.