Add support for snapshot backups
Schnapps provides a way to upload snapshots to webdav or SSH server. It is intended as a full system backup solution.
The example remote UCI configuration:
config remote 'remote'
# option url 'nextcloud://cloud.example.com'|'webdav://dav.example.com'
# option path '/turris/backups'
# option user 'myself'
# option password 'password'
option sync_types 'single,time'