package-request: Add docopt-ng
docopt (https://pypi.org/project/docopt) is a great python package to easily and intuitively parse CLI in python. Unfortunately the package has not received maintenance for years (eg: https://github.com/docopt/docopt/issues/502) and a properly maintained fork was created (https://github.com/jazzband/docopt-ng) a few years ago. Personally, a few bugs prevented me to use the original project but I'm successfully using the new docopt-ng.
I'll be happy to create and maintain an alpinelinux docopt-ng package if deemed useful