SG rule should be ignored if neither source or destination is 'local'
SG rule should be ignored if neither source or destination is 'local'

It was was earlier possible to create a security group rule without specifying
direction. Such rule cannot be applied, and hence should be ignored. We have
already added check in api server to disallow such rules, but for pre-existing
rules, adding a check in schema transforemer also.

Change-Id: If67fd89dfcd718ad45b0f51f1b069e1f55ded522
Closes-Bug: 1474665

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