root/pypi: links for addletterboxcv

root/pypi addletterboxcv-0.1.4-py3-none-any.whl
root/pypi addletterboxcv-0.1.3-py3-none-any.whl
root/pypi addletterboxcv-0.1.1-py3-none-any.whl
root/pypi addletterboxcv-0.1.0-py3-none-any.whl