RFC: RelaxNG and XML schema schemes packaged for Debian

Hi,

A question: I'm currently working with relaxNG and found, that we
(Debian) AFAIK don't have the schemes for RNG [1] or XSD [2] packaged.

To validate RNG or XSD schemas, they are necessary. So my question what
you would prefer:

1) separate packages for every schema (e.g. relaxng-core,
xml-schema-core)

2) ship them with xml-core

Your opinion?

[1] http://relaxng.org/ns/structure/1.0
[2] http://www.w3.org/2001/XMLSchema.html

Regards, Daniel