Add simple fake plugin for testing
Add simple fake plugin for testing

We need to have fake plugin to perform provisioning testing in gate.

Partially Implements: blueprint fake-test-plugin

Change-Id: I112ca08462f3a0a9847e16deba6d8535182a28d6

esikachev/sahara-tests,openstack/sahara-scenario,openstack/sahara-scenario,esikachev/sahara-tests,openstack/sahara-scenario,esikachev/sahara-tests,openstack/sahara-tests,openstack/sahara-tests,openstack/sahara-tests,openstack/sahara-tests