Commit object should have co-author information

[itsluketwist]

It's possible for a commit to have multiple authors, currently the Commit object only gives access to the 'main' author. I'd like to add a method on the Commit object that returns the list of co-authors, by parsing the commit message to find them.

Co-author details: https://github.blog/2018-01-29-commit-together-with-co-authors/

[Byron]

Thanks for letting me know about this, it does seem desirable to support returning these as well and a PR is definitely welcome.

[itsluketwist]

Issue resolved in PR1482, closing! 👌