Added optional parameters to hosted-engine utility

added:
 * hosted-engine --deploy
 * hosted-engine --vm-start
 * hosted-engine --vm-status (currently does nothing)
 * hosted-engine --vm-stop
 * hosted-engine --add-console-password

Change-Id: Idaf0243cdae4fc25ec9531246bf73c19d128d787
Signed-off-by: Alex Lourie <alourie@redhat.com>
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>