* As per the current codebase of cinder tempest plugin, it is getting
dumped in the cinder/tests and the package name is setup.cfg is
cinder_tempest_plugin which does not exists. So i refactored to
give a proper tempest plugin shape.
Change-Id: Ia78ea53a99923844f40fb4e9fe22ec0da4b0c335
75511e3a85