root/pypi: links for stix2extensions

root/pypi stix2extensions-1.0.0.tar.gz
root/pypi stix2extensions-1.0.0-py3-none-any.whl
root/pypi stix2extensions-0.0.4.tar.gz
root/pypi stix2extensions-0.0.4-py3-none-any.whl