Should there be a new release?

[Arcitec]

Hi Chris!

HM-MVGD-HM looks like an excellent algorithm for color matching. Thanks a lot for creating it!

I'm just curious. PyPi is at version 0.5.0 from Aug 25, 2021: https://pypi.org/project/color-matcher/#history

But I spotted a commit from Nov 4, 2021 which adds another algorithm: 552010d

Was that algorithm not good enough to make it into a new release? :)

[Arcitec]

Oh and speaking of releases. It seems like requirements.txt is including two development dependencies:

https://pypi.org/project/docutils/

https://pypi.org/project/ddt/

It would be good to split them into requirements-dev.txt since they aren't used by the library itself, and are only used for doc gen and dev tests.