Adding ability to run smoke test in multinode

The patch adds ability to run smoke tests in multinode for
that below actions have been:

* copy tempest config from config node to test_target
* send keystonerc file to mine from control node
* put keystonerc from mine to test_target

Change-Id: Ifb8555e0526daa5e32c46fbac518ef45ca4ad1ef
Related-PROD: PROD-18350
4 files changed