Bug#1050621: blends-dev: Support conflicts and breaks relations in meta-packages

[Dominik George <natureshadow@debian.org>]

Package: blends-dev
Version: 0.7.5
Severity: wishlist

As discussed in [1], I would like to request addition of Conflicts and
Breaks relationships in tasks meta-package descriptions.

I ahve already started to scan the sources of blends-dev and to
implement the basics for the feature in [2], which works as I want it.

However, there are a few missing parts:

 * Packages in Conflicts or Breaks on some meta-package, but not
   in Requires, Recommends, Suggests or Ignore on others should
   be added to Avoid
 * The generated web pages should probably get a section for
   listed Conflcits and Breaks

Happy to receive advice on these two or any other missing parts.


[1] https://lists.debian.org/debian-blends/2023/08/msg00000.html
[2] https://salsa.debian.org/blends-team/blends/-/merge_requests/14