Obj2mjcf

What's Changed
* Make materials unique by AlexKaravaev in https://github.com/kevinzakka/obj2mjcf/pull/29

New Contributors
* AlexKaravaev made their first contribution in https://github.com/kevinzakka/obj2mjcf/pull/29

**Full Changelog**: https://github.com/kevinzakka/obj2mjcf/compare/v0.0.24...v0.0.25

obj2mjcf` is now officially using the wonderful [CoACD](https://github.com/SarahWeiii/CoACD) library by SarahWeiii instead of V-HACD for approximate mesh decomposition. The code is now cleaner, does not require a separate installation process and in general, produces much more compelling results.

What's Changed
* Introduce Separate Builder (+ Moved Material files) by kwesiRutledge in https://github.com/kevinzakka/obj2mjcf/pull/25
* Minor cleanup and reorg. by kevinzakka in https://github.com/kevinzakka/obj2mjcf/pull/26
* VHACD -> CoACD. by kevinzakka in https://github.com/kevinzakka/obj2mjcf/pull/27

New Contributors
* kwesiRutledge made their first contribution in https://github.com/kevinzakka/obj2mjcf/pull/25

**Full Changelog**: https://github.com/kevinzakka/obj2mjcf/compare/v0.0.23...v0.0.24

Tweaks here and there.

We now trim out any materials parsed from the MTL file but unused in the OBJ file.

Improvements to MJCF saving.

This release fixes a bug related to MTL saving, thanks nicolas-schreiber!