Migrate test_large_ops to tempest client
Migrate test_large_ops to tempest client

This patch migrate the test_large_ops scenario tests
from official client to tempest clients.

Partially-implements: bp:tempest-client-scenarios

Change-Id: I417fba287f212667e08b3b246f222b60249e47b1

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