repoquery by an installation reason

[ppisar]

dnf5 repoquery --userinstalled mixes user-installed, group-installed, profile-installed, and uknown-reason-installed packages. There is no way to list packages by the exact installation reason (e.g. by "User" reason which is what DNF4 did with --userinstalled. Currently, the user can list all packages with dnf repoquery --installed --qf '%{name} {%reason}\n' and then grep the output.

I propose a new repoquery option, e.g. --reason={user|dependency|group|unknown|weak} to limit package set to the given reason. The identifiers should follow dnf mark values.

See https://bugzilla.redhat.com/show_bug.cgi?id=2308842.