Support checkout of specific file/path.

[bwplotka]

Hi 👋

I am pretty sure with existing API we are missing git checkout -- <file> #891 feature. I would like to propose:

• Extending CheckoutOptions with Path string which will make checkout behavior as here: https://git-scm.com/docs/git-checkout#Documentation/git-checkout.txt-emgitcheckoutem-f--ours--theirs-m--conflictltstylegtlttree-ishgt--pathspec-from-fileltfilegt--pathspec-file-nul

Would you accept such contribution? 🤗

[missedone]

I'm looking for this feature "Sparse Checkout" as well.
anybody already worked on this?
thanks