Add tests to cover segments

This patch set adds tests to cver the neutron segments API [0].
Test lists, gets, creates, updates, and deletes segments.
Part of "Increase Neutron RBAC Coverage" initiative [1]

[0] https://developer.openstack.org/api-ref/network/v2/index.html#segments
[1] https://storyboard.openstack.org/#!/story/2002641

Story: 2002641
Task: 22306
Change-Id: I8eef0dcd5355d6212ead2bcb109f23ca0b613109
diff --git a/releasenotes/notes/add-neutron-tempest-plugin-clients-c031e232021b390c.yaml b/releasenotes/notes/add-neutron-tempest-plugin-clients-c031e232021b390c.yaml
new file mode 100644
index 0000000..91d3f20
--- /dev/null
+++ b/releasenotes/notes/add-neutron-tempest-plugin-clients-c031e232021b390c.yaml
@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    In order to strive toward complete test coverage for the services it
+    tests, Patrole now offers RBAC coverage for the APIs included in
+    neutron-tempest-plugin. If this plugin is not installed or enabled, then
+    Patrole will skip those tests.