Gitaly-git2go apply subcommand
Implements apply subcommand for gitaly-git2go that allows for applying patches from diffs. Similar to 'git am', three-way merge is attempted as a fallback if the patch does not apply cleanly.
Related to #3076 (closed)
Depends on https://github.com/libgit2/git2go/pull/657
Edited by Sami Hiltunen