Jan-Benedict Glaw authored Mar 29, 2024 and Holger Levsen committed Mar 29, 2024

This is really only half the work. Calling `diffoscope` and generating
the web page is left for the second round.

Signed-off-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Signed-off-by: Holger Levsen <holger@layer-acht.org>