Add uuid for tests

We should add a unique identifier for manila tests like
done in tempest. This will help to track a specific
test over time.
This patch adds a unique id for all functional and scenario
tests and also adds check-uuid to tox tests.

Change-Id: I262c7df709a8a7e9ed36591571069b9bcef0f51c
diff --git a/tox.ini b/tox.ini
index 43a9037..da879bf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,12 @@
 # commands = python setup.py test --slowest --testr-args='{posargs}'
 
 [testenv:pep8]
-commands = flake8 {posargs}
+commands =
+    flake8 {posargs}
+    check-uuid --package manila_tempest_tests
+
+[testenv:uuidgen]
+commands = check-uuid --fix --package manila_tempest_tests
 
 [testenv:venv]
 commands = {posargs}