Should the package definitions be part of YANG library?

[rgwilton]

Should the YANG package definitions be part of YANG library, or should they be contained in their own top level "packages" container?

The advantages of them being part of YANG library is that fetching the YANG library information retrieves all of the packages at the same time. However, given that one of the aims of packages is that they are available off the box, then this doesn't seem to be so useful, and perhaps would end up being a hindrance.

[rgwilton]

I think that this issue is effectively the same as #12.