Add a class/category to POM dependecies

I'd like to see the following improvement in Maven:

AFAIK currently there's no categorization for the depencies, at least the following categories could be useful:

1) Distributable
The jars, that could be included in the product release i.e. the ones that could be shipped with the product

2) Non-Distributable
The jars, that could not be shipped (e.g. license restrictions) with a product release

3) Build
The jars, that aren't needed to run the product but are needed for the build (e.g. custom in-house reports, Doclets/Taglets etc.)

These categories could be then used e.g. with the "dist" plugin that would only distribute the jars, that should go into the dist.