VOL-4925 - Build and release components.

Misc/
-----
  o Bulk copyright notice updates to 2023.

VERSION
-------
  o Bump version string for a release build.

dependencies.xml
----------------
  o Update released component versions.

Makefile
makefiles/
----------
  o Add common library makefiles for lint, constants, etc.

Change-Id: I5a4f6cc764913b93f3ae192bc292896a9ec3dbf0
diff --git a/makefiles/python/test/include.mk b/makefiles/python/test/include.mk
new file mode 100644
index 0000000..12afc3e
--- /dev/null
+++ b/makefiles/python/test/include.mk
@@ -0,0 +1,37 @@
+# -*- 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
+# -----------------------------------------------------------------------
+
+.PHONY: test-python
+# test :: test-python
+test-targets += test-python
+
+## -----------------------------------------------------------------------
+## Intent: Gather and invoke available unit tests
+## -----------------------------------------------------------------------
+test-python-args += -m unittest
+test-python:
+	$(PYTHON) $(test-python-args) discover -v
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+help::
+	@echo "  test-python                   Invoke python unit tests"
+
+# [EOF]