Add check that service tag isn't in path name
Add check that service tag isn't in path name

This commit adds a new hacking check to ensure that a service tag
isn't added on a test whose path includes the service tag being added.
Having a service tag added where the path already contains the service
name is redundant.

Partially implements bp add-service-tags

Change-Id: I88b3005d05e17751045d766efb1e965822a3c50e

danielmellado/tempest,ebagdasa/tempest,yamt/tempest,pandeyop/tempest,CiscoSystems/tempest,LIS/lis-tempest,nunogt/tempest,dkalashnik/tempest,flyingfish007/tempest,rakeshmi/tempest,pczerkas/tempest,alinbalutoiu/tempest,flyingfish007/tempest,Tesora/tesora-tempest,Mirantis/tempest,eggmaster/tempest,varunarya10/tempest,afaheem88/tempest,alinbalutoiu/tempest,zsoltdudas/lis-tempest,vmahuli/tempest,jaspreetw/tempest,hpcloud-mon/tempest,eggmaster/tempest,redhat-cip/tempest,hayderimran7/tempest,roopali8/tempest,neerja28/Tempest,tudorvio/tempest,cisco-openstack/tempest,tonyli71/tempest,nunogt/tempest,sebrandon1/tempest,xbezdick/tempest,JioCloud/tempest,bigswitch/tempest,rzarzynski/tempest,ebagdasa/tempest,dkalashnik/tempest,vedujoshi/tempest,rakeshmi/tempest,vmahuli/tempest,akash1808/tempest,pczerkas/tempest,jamielennox/tempest,zsoltdudas/lis-tempest,Vaidyanath/tempest,afaheem88/tempest_neutron,neerja28/Tempest,tonyli71/tempest,NexusIS/tempest,CiscoSystems/tempest,NexusIS/tempest,xbezdick/tempest,manasi24/tempest,yamt/tempest,roopali8/tempest,cisco-openstack/tempest,masayukig/tempest,jaspreetw/tempest,queria/my-tempest,bigswitch/tempest,vedujoshi/tempest,masayukig/tempest,Mirantis/tempest,manasi24/tempest,danielmellado/tempest,Vaidyanath/tempest,pandeyop/tempest,Lilywei123/tempest,JioCloud/tempest,hayderimran7/tempest,tudorvio/tempest,jamielennox/tempest,redhat-cip/tempest,afaheem88/tempest,afaheem88/tempest_neutron,openstack/tempest,cloudbase/lis-tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,akash1808/tempest,Juniper/tempest,Juraci/tempest,cloudbase/lis-tempest,manasi24/jiocloud-tempest-qatempest,queria/my-tempest,Tesora/tesora-tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,openstack/tempest,hpcloud-mon/tempest,varunarya10/tempest,Juniper/tempest,manasi24/jiocloud-tempest-qatempest,vedujoshi/os_tempest,vedujoshi/os_tempest,Juraci/tempest,LIS/lis-tempest,Lilywei123/tempest,sebrandon1/tempest,izadorozhna/tempest,izadorozhna/tempest,rzarzynski/tempest