Add classes to enable CADF notifications
diff --git a/keystone/server/notification/cadf.yml b/keystone/server/notification/cadf.yml
new file mode 100644
index 0000000..dffb278
--- /dev/null
+++ b/keystone/server/notification/cadf.yml
@@ -0,0 +1,4 @@
+parameters:
+  keystone:
+    server:
+      notification_format: cadf