Improve Tempest tests for consistency groups

Resource setup for 'ConsistencyGroupActionsTest' test class is
inefficient. It creates three separate shares waiting for 'available'
status going one by one. It can be improved by creating three shares
at once and then waiting for their status. So, update resource setup
for mentioned class and do related minor updates for tests of that
class.

Change-Id: Ibd82796866851cba22b417fad34f41dc2aa756e8
Closes-Bug: #1493406
2 files changed
tree: 96e28987189c8ed0caf3c1a72550d11fda24e14e
  1. manila_tempest_tests/