Add share transfer test.

Partially-Implements: blueprint transfer-share-between-project

Change-Id: I74f0a079edb59e376d045fe9e9fd781acd70249d
diff --git a/manila_tempest_tests/common/constants.py b/manila_tempest_tests/common/constants.py
index 3488bc5..416de56 100644
--- a/manila_tempest_tests/common/constants.py
+++ b/manila_tempest_tests/common/constants.py
@@ -108,3 +108,6 @@
 SERVER_STATE_UNMANAGE_STARTING = 'unmanage_starting'
 STATUS_SERVER_MIGRATING = 'server_migrating'
 STATUS_SERVER_MIGRATING_TO = 'server_migrating_to'
+
+# Share transfer
+SHARE_TRANSFER_VERSION = "2.77"