Add integration test cases for Fuel VMware DVS plugin.

[Olesia Tsvigun]

1.Deploy cluster with plugin and vmware datastore backend.
2.Deploy in HA cluster with plugin.
3.Deploy cluster with plugin and Ceph for Glance and Cinder.
4.Deploy cluster with plugin and ceilometer.
5.Deploy cluster with plugin, addition and deletion of nodes.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/6.1
Review: https://review.openstack.org/206929

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/206929
Committed: https://git.openstack.org/cgit/stackforge/fuel-qa/commit/?id=99a5fbdcd2546c73e3b0731e89c39ccfe41a4174
Submitter: Jenkins
Branch: stable/6.1

commit 99a5fbdcd2546c73e3b0731e89c39ccfe41a4174
Author: otsvigun <email address hidden>
Date: Fri Jul 3 13:36:34 2015 +0300

    Add new test suite test_plugin_dvs

    -add dvs_vcenter_smoke test case
    -add dvs_vcenter_ha_mode
    -add dvs_vcenter_ceph
    -add dvs_vcenter_ceilometer
    -add dvs_vcenter_add_delete_nodes

    Closes-bug: #1478568

    Change-Id: I3d3b156e58627a67ec7a3995311763ad2bd683a4

[OpenStack Infra (hudson-openstack)]

Change abandoned by Fuel DevOps Robot (<email address hidden>) on branch: master
Review: https://review.openstack.org/198303
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.