cli: implement prompt initialization
cli: implement prompt initialization

Change-Id: Icabf65340463b31bb6457a6b3bef5fb1edf1e6bb
Signed-off-by: Michael pasternak <af5566a40fc9757136fd9da9ca5e2dbdd9b039eb@redhat.com>

oVirt/ovirt-engine-cli,oVirt/ovirt-engine-cli