Merge this library into packaging?

[chrysle]

This was already proposed pypa/packaging#647, but I thought I'd also file this here for greater visibility. Merging this library into
a separate module or package within packaging (since the code isn't very complex, right now) would ensure a wider availability – especially since many projects already have dependencies on packaging. That might also ease the development process. It should be a valuable addition to the current packaging's toolset.

[FFY00]

I think this is mainly up to the packaging maintainers. I would be happy to collaborate and discuss this further if it is something they'd actually be interested in doing.