Nsb-toolbox

Fixes another minor bug with how `nsb-format` handles line breaks.

What's Changed
* add dry-run option with stat tracking to assign by rishi-kulkarni in https://github.com/rishi-kulkarni/nsb-toolbox/pull/7
* fix linebreak bug and update tests by rishi-kulkarni in https://github.com/rishi-kulkarni/nsb-toolbox/pull/9
* bump to 0.4.3 by rishi-kulkarni in https://github.com/rishi-kulkarni/nsb-toolbox/pull/10


**Full Changelog**: https://github.com/rishi-kulkarni/nsb-toolbox/compare/v0.4.2...v0.4.3

Minor fixes and improvements to `nsb format` and `nsb assign`

Changelog
* Adds `--capitalize` option to `nsb format` to force capitalization of all answer lines
* Properly formats questions that have a line break between the question type and the stem
* Adds `--dry-run` option to `nsb assign` that shows stats of what question properties are present/needed, but doesn't write the successful assignment to the question file

Fixes an import bug.

Changelog
* Adds typing-extensions to setup.cfg

This release implements the `nsb assign` functionality.

Changelog
`nsb assign`
* Allows SMEs to automatically assign Science Bowl questions to rounds based on constraints in a config file. See README for more information.
`nsb format`
* Updates to ensure that the output of `nsb format` is ready to be used by `nsb assign`
* Mild performance improvements

This release updates `nsb toolbox` for the 2023 NSB.

Changelog
Formatting Changes
* There is no longer a line break between the question stem and W) in Multiple Choice questions
* If an answer line is given, it is no longer automatically capitalized
Bugfixes
* Nonbreaking spaces are replaced with regular spaces, rather than nothing

This minor patch adds question stat-tracking capability to nsb format.