restore: By default restore to a standby, the user can promote the DB if needed
restore: By default restore to a standby, the user can promote the DB if needed

This may need to be made configurable along with setting of recovery target
and primary_conn_info. Also pass along an optional primary_conninfo if
we want the new standby to replicate from somewhere.

kri5/pghoard,Ormod/pghoard,ohmu/pghoard,melor/pghoard,ohmu/pghoard,saaros/pghoard,hnousiainen/pghoard,hnousiainen/pghoard