New version_tuple function in gen_misc.py
New version_tuple function in gen_misc.py

Also, set global values for use by others:

- python_version
- ordered_dict_version

Change-Id: Ibc0324105206214155766f5d092b5c5385fc9eb8
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation