* Add new scenario Quotas.neutron_update to exercise updating
quotas for neutron
* Modify _update_quotas to be able to support clients which
update quotas with an api different from nova and cinder
* Add test for ZaqarQueues list()
Co-Authored-By: Roman Vasilets <rvasilets@mirantis.com>
Co-Authored-By: Marco Morais <mmorais@yahoo-inc.com>
Change-Id: Ida19c02f831e1846bb96a239f4a2deb5ae417153
97b2e4e392