After run manila tempest the share network residue

After run manila tempest with multi-tenancy there have manila share network residue.
This manila share network should be deleted in clear resources.

Change-Id: I91060888f3509b1e84a453847a7aa3ebcfbf01c9
Closes-Bug:#1754588
diff --git a/manila_tempest_tests/tests/api/base.py b/manila_tempest_tests/tests/api/base.py
index b34c92a..9ef53aa 100644
--- a/manila_tempest_tests/tests/api/base.py
+++ b/manila_tempest_tests/tests/api/base.py
@@ -290,6 +290,12 @@
                 cls.shares_v2_client, cls.networks_client)
             cls.shares_client.share_network_id = share_network_id
             cls.shares_v2_client.share_network_id = share_network_id
+            resource = {
+                "type": "share_network",
+                "id": share_network_id,
+                "client": cls.shares_v2_client,
+            }
+            cls.class_resources.insert(0, resource)
 
     @classmethod
     def resource_setup(cls):
@@ -1075,3 +1081,9 @@
                 cls.alt_shares_v2_client, cls.os_alt.networks_client)
             cls.alt_shares_client.share_network_id = alt_share_network_id
             cls.alt_shares_v2_client.share_network_id = alt_share_network_id
+            resource = {
+                "type": "share_network",
+                "id": alt_share_network_id,
+                "client": cls.alt_shares_v2_client,
+            }
+            cls.class_resources.insert(0, resource)