Tetgen

What's Changed

This release now generates both universal and x64 wheels for MacOS.

* Add cibuildwheel by akaszynski in https://github.com/pyvista/tetgen/pull/43
* use latest build env by akaszynski in https://github.com/pyvista/tetgen/pull/44

**Full Changelog**: https://github.com/pyvista/tetgen/compare/v0.6.0...v0.6.1

What's Changed
* Update README.rst by nickvazz in https://github.com/pyvista/tetgen/pull/23
* Fix python version in macOS build by stefsmeets in https://github.com/pyvista/tetgen/pull/26
* Add 3.9 and gh action for macos by akaszynski in https://github.com/pyvista/tetgen/pull/27
* Fix link of image files by tkoyama010 in https://github.com/pyvista/tetgen/pull/28
* remove direct vtk usage by akaszynski in https://github.com/pyvista/tetgen/pull/29
* upgrade to tetgen1.6 by akaszynski in https://github.com/pyvista/tetgen/pull/31

New Contributors
* nickvazz made their first contribution in https://github.com/pyvista/tetgen/pull/23
* stefsmeets made their first contribution in https://github.com/pyvista/tetgen/pull/26
* tkoyama010 made their first contribution in https://github.com/pyvista/tetgen/pull/28

**Full Changelog**: https://github.com/pyvista/tetgen/compare/0.5.1...v0.6.0

Initial release of tetgen. See PyPi for compiled libraries:
https://pypi.org/project/tetgen/

See readme at https://github.com/akaszynski/tetgen/blob/master/README.rst