ST: Add UT test case for floating ip add/remove to a service chain
ST: Add UT test case for floating ip add/remove to a service chain

- Create in-network service chain
- associate a floating ip to one of vmi's
- check vrf assign table to a a rule is created associated to floating ip
- deassociate floating ip
- check  vrf assign rule is deleted

Closes-Bug: #1473516

Change-Id: I5d38f2d4f05deb364c24007a869258dae3fd1656

sajuptpm/contrail-controller,DreamLab/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,hthompson6/contrail-controller,reiaaoyama/contrail-controller,sajuptpm/contrail-controller,nischalsheth/contrail-controller,DreamLab/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,facetothefate/contrail-controller,DreamLab/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,facetothefate/contrail-controller,hthompson6/contrail-controller,codilime/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,rombie/contrail-controller,vpramo/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,vmahuli/contrail-controller,eonpatapon/contrail-controller,hthompson6/contrail-controller,hthompson6/contrail-controller,DreamLab/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,numansiddique/contrail-controller,vpramo/contrail-controller,reiaaoyama/contrail-controller,codilime/contrail-controller,rombie/contrail-controller,sajuptpm/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,reiaaoyama/contrail-controller,reiaaoyama/contrail-controller,nischalsheth/contrail-controller,reiaaoyama/contrail-controller,numansiddique/contrail-controller,facetothefate/contrail-controller,facetothefate/contrail-controller,codilime/contrail-controller,hthompson6/contrail-controller,DreamLab/contrail-controller,eonpatapon/contrail-controller,codilime/contrail-controller,rombie/contrail-controller,sajuptpm/contrail-controller,numansiddique/contrail-controller,nischalsheth/contrail-controller,vpramo/contrail-controller,sajuptpm/contrail-controller,facetothefate/contrail-controller,tcpcloud/contrail-controller,numansiddique/contrail-controller,nischalsheth/contrail-controller,numansiddique/contrail-controller