devel/py-tblib: Update to 3.2.0

• Update COMMENT
• Update WWW
• Convert to USE_PYTHON=pep517
• Update pkg-descr
• Take maintainership

Changes: https://github.com/ionelmc/python-tblib/blob/master/CHANGELOG.rst

		https://python-tblib.readthedocs.io/en/latest/changelog.html