Config LBAAS changes:
Point right VMI of LB service instance to the same instance IP as VIP instance IP.
Change the keyword type to monitor-type so that it doesn't conflict with internal keyword.
Do not create the default instance for loadbalancer resources.
Fix service mode for haproxy template
Set SNAT ha mode to active-standby
Changes to allow same network/subnte for vip and pool

Change-Id: I233732afd25b9ebde8826bac0fe0c8da703e3a94
Merge "Config LBAAS changes: Point right VMI of LB service instance to the same instance IP as VIP instance IP. Change the keyword type to monitor-type so that it doesn't conflict with internal keyword. Do not create the default instance for loadbalancer resources. Fix service mode for haproxy template Set SNAT ha mode to active-standby Changes to allow same network/subnte for vip and pool"