root/pypi: links for usb4a

root/pypi usb4a-0.3.0.tar.gz
root/pypi usb4a-0.3.0-py3-none-any.whl
root/pypi usb4a-0.2.0.tar.gz
root/pypi usb4a-0.2.0-py3-none-any.whl
root/pypi usb4a-0.1.1.tar.gz
root/pypi usb4a-0.1.1-py2-none-any.whl
root/pypi usb4a-0.1.0.tar.gz
root/pypi usb4a-0.1.0-py2-none-any.whl