PS: scummvm: please provide a transitional package to take over residualvm

[Alexandre Detiste <alexandre.detiste@gmail.com>]

Here's a sample merge request as proposed:
   https://salsa.debian.org/games-team/scummvm/-/merge_requests/5

Upstream seems neither interested nor against this littel transition helper;
maybe we can get back in touch later when it's done.

For the records a bit of discussion happened on this other MR:
  https://salsa.debian.org/games-team/scummvm/-/merge_requests/4

Greetings,

Alexandre