This makes it trivial to inspect, line by line, what got covered.
That is useful when evaluating coverage for a new feature.

Signed-off-by: Martí Bolívar <mbolivar@amperecomputing.com>

Our release process documentation recommends getting passing tox
results on as many popular linux distributions as time allows. Doing
this by hand is cumbersome, redundant, and error prone.

Add a directory with a helper script that automates the entire process
using docker compose and document its use in MAINTAINERS.rst.

Signed-off-by: Martí Bolívar <mbolivar@amperecomputing.com>
Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>