Add functional tests for security group CRUD
Add functional tests for security group CRUD

Change-Id: Ib5bbd46c0454d7dbb541354d515430922569c994

openstack/python-openstackclient,openstack/python-openstackclient,dtroyer/python-openstackclient,BjoernT/python-openstackclient,redhat-openstack/python-openstackclient,BjoernT/python-openstackclient,redhat-openstack/python-openstackclient,dtroyer/python-openstackclient