debian: add some 'easy' dependencies

[wsldankers]

Adds dependencies for SDL2, Wayland, libsixel, pipewire, all of which are available in both Debian stable and Ubuntu 22.04 LTS and 24.04 LTS.

Also enables DVB support (which doesn't have any dependencies) and bumps the debhelper compat version to something less archaic.

[Dudemanguy]

Old I know. I would have merged it but according to debian documentation:

The compat 11 is discouraged for new packages as it suffers from feature interaction between dh_installinit and dh_installsystemd causing services to not run correctly in some cases.

That probably doesn't apply to us but maybe we should pick a different number anyways. Not sure if 12 makes the most sense or something even newer. I'll leave that up to you.

[wsldankers]

Old I know. I would have merged it but according to debian documentation:

The compat 11 is discouraged for new packages as it suffers from feature interaction between dh_installinit and dh_installsystemd causing services to not run correctly in some cases.

That probably doesn't apply to us but maybe we should pick a different number anyways. Not sure if 12 makes the most sense or something even newer. I'll leave that up to you.

Yeah, those caveats definitely did not apply to this package. At the time, 11 was the highest version supported by the then-current debian/ubuntu releases I was targeting. Since those versions are now obsolete I changed it to 12 to avoid the discussion.

[Dudemanguy]

Thanks, let's finally pull this in.