db: add a unicity contrain on remotecis.name
db: add a unicity contrain on remotecis.name

Ensure we can only have one remote CI with the same name.

Change-Id: If379c260ddb8bd552cc4eb19379f7eba6f3cdb26

goneri/dci-control-server,enovance/dci-control-server,goneri/dci-control-server,goneri/dci-control-server,redhat-cip/dci-control-server,redhat-cip/dci-control-server,enovance/dci-control-server,goneri/dci-control-server