Restore NFD Properties

[vsoch]

I don't think we are using NFD Properties (and there has been considerable work on them in the last few years) so I think what might make sense to do now is to remove them from our parsing, and add back strategically for specific things that we want/need. I think with the changes to NFD, if we leave them now if someone is using NFD we could hit a bug or it wouldn't do anything, and I want to make sure we are adding metadata / nodes knowing what the outcome / scenarios should be.

It looks like our graph doesn't have sockets or racks either - so removing those until we need them too.

[vsoch]

Related: #5