Rewrite authorized keys and principals checkers in Go
Determine whether to execute a command or a checker based on the filename of the executable/symlink. Currently supports 2 types for checking authorized keys and principals.
Symlinks to gitlab-shell were added and the ruby scripts have been renamed to gitlab-shell-authorized-keys-check-ruby and gitlab-shell-authorized-principals-check-ruby. They'll be used as fallback executable when feature flag to use Go versions are disabled.
Edited by Patrick Bajao