Extend PubkeyAuthentication to support the OpenSSH-compatible modes no, yes/all, unbound, and host-bound.
Preserve the existing enable/disable flag behavior for callers using the legacy API, while also storing the selected mode and keeping the previous integer normalization in ssh_options_set().
Signed-off-by: Nuhiat-Arefin <nuhiatarefin@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Merge-Request: <https://gitlab.com/libssh/libssh-mirror/-/merge_requests/814>
958e18ba75