Functional tests for create share from snapshot different pools/azs

This patch adds functional tests for the feature create share
from snapshot in different pools or availability zones.

Partially-implements: bp create-share-from-snapshot-in-another-pool-or-backend

Change-Id: Iece5bc2c1aa6485f3533711baf514bb852357820
diff --git a/manila_tempest_tests/config.py b/manila_tempest_tests/config.py
index 6973092..2205f6b 100644
--- a/manila_tempest_tests/config.py
+++ b/manila_tempest_tests/config.py
@@ -240,6 +240,11 @@
     cfg.BoolOpt("run_mount_snapshot_tests",
                 default=False,
                 help="Enable or disable mountable snapshot tests."),
+    cfg.BoolOpt("run_create_share_from_snapshot_in_another_pool_or_az_tests",
+                default=False,
+                help="Defines whether to run tests that create share from "
+                     "snapshots in another pool or az. Enable this "
+                     "option if the used driver supports it."),
 
     cfg.StrOpt("image_with_share_tools",
                default="manila-service-image-master",