bug#68214: Completion sorting customization by category

[Daniel Mendler]

Juri Linkov <juri@linkov.net> writes:

> Now this is pushed as well.
>
> Since all existing metadata functions are completely covered now,
> it's time to close this feature request.
>
> Thank you for helping to bring this nice feature to fruition!

Thank you for finishing this feature! I will add the new
`completion-metadata-get' implementation to the Compat package, such
that ELPA packages can potentially also take advantage of the improved
metadata access.

Daniel