root/pypi: links for python-download-manager

root/pypi python_download_manager-0.7.8.tar.gz
root/pypi python_download_manager-0.7.8-py3-none-any.whl
root/pypi python_download_manager-0.7.7.tar.gz
root/pypi python_download_manager-0.7.7-py3-none-any.whl