Add the u20->u22 openstack workflow #29

Job	Run time
testsuite / testsuite	3m 2s
terraform_openstack_create	5m 6s
clone_elevate_repo	7s
setup_integration_checks	6s
start_elevate	15m 4s
wait_for_stage_1_reboot	30s
watch_for_stage_2_reboot	5s
wait_for_stage_2_reboot	5s
watch_for_stage_3_reboot	5m 47s
wait_for_stage_3_reboot	24s
watch_for_stage_4_reboot	15m 59s
wait_for_stage_4_reboot	13m 52s
watch_for_stage_5_reboot	18m 14s
wait_for_stage_5_reboot	0s
watch_for_final_reboot	0s
wait_for_final_reboot	0s
verify_upgraded_os	0s
terraform_openstack_destroy	0s
	1h 18m 21s

Provide feedback