root/pypi: links for conv-stft

root/pypi conv_stft-0.2.0-py3.6.egg
root/pypi conv_stft-0.1.2.tar.gz
root/pypi conv_stft-0.1.2-py2.py3-none-any.whl
root/pypi conv_stft-0.1.1.tar.gz