Add copyright info to all python files and bump version

  Related-PROD: PROD-36846

Change-Id: I47c25d81d4173286e1729cef7a1cc321a495316f
diff --git a/scripts/sniffer.py b/scripts/sniffer.py
index 72ccbb9..96e49a0 100644
--- a/scripts/sniffer.py
+++ b/scripts/sniffer.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 """
 This is a WIP script.
 Work is halted,