This submission adds create_and_update_domain method to
rally/benchmark/scenarios/designate/basic.py.
Adds update method to "utils.py" under
"rally/benchmark/scenarios/designate".
Added configuration files for designate update-domain
operation under samples/tasks/scenarios/designate.
1) create-and-update-domain.json
2) create-and-update-domain.yaml
Also added unit tests to 'test_basic.py' and 'test_utils.py'
under 'rally/tests/unit/plugins/openstack/scenarios/designate'.
Change-Id: I58468666c0eb73143a0a451466ba41d12a9076d6
9180e74757