Wonka

* Added example to README.md
* Added more recipes to recipes.md
* Added Registry class, offering extra functionality beyond a `dict`
* Added documentation to advanced.md

* Fixed default for 'Registrar' registry class attribute
* Fixed wordwrap issue in tables in tutorial
* Added recipe to recipes.md
* Removed non-public classes and functions from documentation
* Fixed bug with Manager's `create` property so that it properly calls the
`manage` method
* Changed required Python version to 3.11 or greater

* Removed empty keystons module until it is ready to prevent linting errors
* Updated out-of-date actions
* Removed extraneous actions

* Fixed unit test setting bug

* Transitioned to 0.1.9 `snickerdoodle` template
* Removed all external dependencies

* Added unit tests
* Added advanced documentation and full tutorial