Makefile and python cleanups.

Makefile
--------
  o Add std copyright notice header
  o Update to use repo:onf-make to support virtualenv, etc makefile targets.
  o Update help to display a static text block.  Grep for strings prefixed
    by '##' can become confused and display 'Makefile' instead of target name.

tox.ini
-------
  o Update to also support python 3.10+

Change-Id: Id8183ad03df252c81631a8c5ef4f08fe23d0ada5
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..d2ce10c
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,10 @@
+# -*- makefile -*-
+
+restview~=3.0.1
+#
+coverage~=7.3.2
+flake8~=6.1.0
+pylint~=3.0.2
+reuse~=0.14.0
+
+# [EOF]