BSPR-111077 - Speed up conversion of meshes with left-handed winding order.

[AntoineMilliezDisney]

The original implementation made lots of calls to polygonVertexCount which could be slow (order of minutes) on large meshes.

[pierrebai-adsk]

You will need to fix the code layout according to teh clang failures. Click on the clang failure link to see the errors.

See: https://github.com/Autodesk/maya-usd/blob/dev/doc/codingGuidelines.md#c-coding-guidelines

[AntoineMilliezDisney]

This builds and works fine at our company on Maya 2025 / Alma Linux, I see build failures in the build_preflight step which I cannot troubleshoot.
@pierrebai-adsk - Considering I am non-Autodesk and humbly trying to help here, are we okay having an in-house developer take it over?
Thanks a lot!

[pierrebai-adsk]

Don't worry about this failure, our internal build pipeline had hiccups. I'll restart the preflight once again.

[seando-adsk]

Build failure was an internal glitch. The preflight build passed. Marking as ready for merge.