Update toolsetup.bat and Tests/PythonTest.py to check if we're running a version of Python that's compatible with BaseTools and the Pip BaseTools. BaseTools uses syntax from Python 3.6 or newer, so set that as the minimum version EDK2 requires. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>