Add loggable resource client

This patch creates the network v2.0 loggable-resource client.

https://docs.openstack.org/api-ref/network/v2/index.html#list-loggable-resources
Signed-off by: Soniya Vyas<svyas@redhat.com>

Change-Id: I37b9397834fbb7f4ebf540dc5f8aece356ddf749
diff --git a/releasenotes/notes/loggable-resource-client-5977d46a7ea52199.yaml b/releasenotes/notes/loggable-resource-client-5977d46a7ea52199.yaml
new file mode 100644
index 0000000..ac83eaf
--- /dev/null
+++ b/releasenotes/notes/loggable-resource-client-5977d46a7ea52199.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Lists neutron's Loggable resources API service clients are available in
+    ``tempest/lib/services/network/loggable_resource_client.py`` module.
\ No newline at end of file