Module to provide communication with a server in order to send new
tasks and query them.
pg-backup-api is a REST api that at the moment, is integrated with
barman only, and can provide a communication interface in order to
perform remote recoveries through background tasks. There are cases
where instead of writing a new repmgr module of some feature that
exists in backup tools already, like barman, pg-backup-api can
provide that integration.
