Filtering of the package list

The package list should be easily filterable by package type (to exclude Sf2 bundles if you don't use Sf2 for instance) and by tags (probably allowing to select several tags)

The issue names the package list but no file or test. Start by locating the package-list entry point and existing filtering behavior, then determine how package-type exclusion and multi-tag selection should work. Done means users can exclude package types such as Sf2 bundles and filter by one or more tags.

Written by the indexing model from the issue text.