Fontparts

---------------------------
- Adds `glyph.autoContourOrder`. Issue 645. (thanks roberto-arista!)
- Adds `FuzzyNumber` to `base.py`. Needed for the above, copied from defcon. (thanks typemytype!)

---------------------------
- Fixes issue with setting glyph name when copying. Issue 633. (thanks typemytype!)

---------------------------
- Fixes issue with `defaultLayer` and copying a `font`. Issue 630. (thanks typemytype!)

---------------------------
- Add vaidate kwarg to _loadFromGlyph 623. (thanks ctrlcctrlv)

---------------------------
- Update to use Collections.abc.Hashable by benkiel in 622
- Start testing Python 3.10 by benkiel in 619

---------------------------
- 2021-12-28: Drops support for Python 3.6
- 2021-12-14: Adds tempLib, 615 (thanks typemytype!)
- Improved docs with 605 and 607. Thanks driehuis and arrowtype!