ci(ovn): add verification tests for database (#1048)

Signed-off-by: Mohammed Naser <mnaser@vexxhost.com>
diff --git a/.stestr.conf b/.stestr.conf
new file mode 100644
index 0000000..74ba608
--- /dev/null
+++ b/.stestr.conf
@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=./atmosphere/tests
+top_dir=./