VOL-4836 - Cosmetic edits to trigger a jenkins job.

Makefile
makefiles/
----------
  o Added targets help, lint, sterile, todo, {go,java,python}-all.
  o replace "rm -rf" with make builtin $(RM) -r.
  o make clean: pass --no-run-if-empty to avoid a failure condition.

tox.ini
-------
  o Test target runs cleanly with python v3.10.6 so include as a valid interpreter version.

python/
python/test/
------------
  o Cosmetic edit, update copyright notice to trigger a jenkins job.

Change-Id: I3f10ada2774b0c5c742ee4aabcd60bbb56ab76dc
diff --git a/makefiles/consts.mk b/makefiles/consts.mk
new file mode 100644
index 0000000..c96cb88
--- /dev/null
+++ b/makefiles/consts.mk
@@ -0,0 +1,30 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+null        :=#
+space       := $(null) $(null)
+dot         ?= .
+
+HIDE        ?= @
+SHELL       := bash -e -o pipefail
+
+env-clean   = /usr/bin/env --ignore-environment
+
+# [EOF]