Ktz

* Changelog will be provided in the upcoming 0.4 release
* This pre-release bumps Python to 3.10 and pyyaml to 6+
* Released for downstream applications

Changelog

* Fixed bug where `collections.dflat` did not correctly handle empty dict leaves (0d5f43b59dfc83bb29adc91f03be197e9b425994)
* Fixed wrong exception thrown in `collections.drslv` for deep misses (9a550d9ed9b184d53fdf4d19c596b4556f23a170)
* Added `dataclasses.Index.__delitem___` (`del idx[x]`) (9fc5befe0892dce50baee2011e04b9b9d3171544)
* Added `dataclasses.Index.has` (6b29d0545dbc39426eb7ce6ad2447eb2f0287815)
* Added `dataclasses.Index.__len__` (`len(idx)`) (daf3c50f11e7ad3fd7d25d4b5abe7d293b95ce30)
* `dataclasses.Index.add` now allows single items
* Added `dataclasses.Index.gets` (daf3c50f11e7ad3fd7d25d4b5abe7d293b95ce30)
* Added `dataclasses.Index.freeze` and `unfreeze` (2cd47f21595cf786e50653ad45c6f80a2b21ba7d)
* Removed all `asdict` invokations in `dataclasses.Index` as it makes undesireable deep copies (5aff64a35e0e837aa986691e9aeb6d8ad9e96f4f)
* Deprecated `filesystem.git_hash` (c6e06036dabee79f6d0ce1065b9b59cabce322fb)
* Renamed `collections.flat` to `collections.lflat` (7817d909f4e4e67040af4eaa812159b594a45491)
* Added `collections.dconv` (376e7cc2d5aeb29cdc27b69adbaf8af771e7d4e6)

Changelog:

- Added [functools.Cascade](https://kantholtz.github.io/ktz/ktz-functools.html#ktz.functools.Cascade)
- Added [functools.Maybe](https://kantholtz.github.io/ktz/ktz-functools.html#ktz.functools.Maybe)
- Added [collections.Incrementer](https://kantholtz.github.io/ktz/ktz-collections.html#ktz.collections.Incrementer)
- Added [collections.dmerge](https://kantholtz.github.io/ktz/ktz-collections.html#ktz.collections.dmerge)
- Added [collections.dflat](https://kantholtz.github.io/ktz/ktz-collections.html#ktz.collections.dflat)
- Added [collections.dmerge](https://kantholtz.github.io/ktz/ktz-collections.html#ktz.collections.dmerge)
- Added [collections.drslv](https://kantholtz.github.io/ktz/ktz-collections.html#ktz.collections.drslv)
- Added [collections.ryaml](https://kantholtz.github.io/ktz/ktz-collections.html#ktz.collections.ryaml)
- Added [multiprocessing.Actor](https://kantholtz.github.io/ktz/ktz-multiprocessing.html#ktz.multiprocessing.Actor)
- Added [multiprocessing.Control](https://kantholtz.github.io/ktz/ktz-multiprocessing.html#ktz.multiprocessing.Control)
- Added [multiprocessing.Handler](https://kantholtz.github.io/ktz/ktz-multiprocessing.html#ktz.multiprocessing.Handler)
- Added [multiprocessing.Relay](https://kantholtz.github.io/ktz/ktz-multiprocessing.html#ktz.multiprocessing.Relay)

Release candidate for the upcoming 0.2.0 release.

**Still to be done:**
- Fix weird history/commit state in the `docs` branch
- Update documentation of multiprocessing and functools (see FIXME)
- Gather changelog to attach to Version 0.2.0 release

Initial project release :)