Hi Guix! This patch adds a package for VisiData.

VisiData is an interactive multitool for tabular data. It combines the clarity of a spreadsheet, the efficiency of the terminal, and the power of Python, into a lightweight utility which can handle millions of rows with ease. https://www.visidata.org/, GPLv3

Tests are disabled because they are not packaged with the source tarball.

You can view test status here: https://circleci.com/gh/saulpw/visidata/tree/stable

Upstream suggests tests will be packaged with their source tarball around their 2.0 release.

Cheers,

Ryan Prior