Schema changes for port-tuple
Schema changes for port-tuple

Add support for port-tuple to store service instance related
virtual-machine ports. More details in the blueprint:
https://blueprints.launchpad.net/opencontrail/+spec/vm-services-with-precreated-ports

Change-Id: I94c10e386843d936182dff5477e04045a19621a8
Partial-Bug: #1512837

sajuptpm/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,eonpatapon/contrail-controller,codilime/contrail-controller,rombie/contrail-controller,tcpcloud/contrail-controller,sajuptpm/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,sajuptpm/contrail-controller