Move debian dir to the master

Add debian dir to combine building workflow

Change-Id: I07f3b6cfa35da1337af81580b230e5831f66aff3
PROD: https://mirantis.jira.com/browse/PROD-20910
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..ec63514
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+9