Add Affiliated Projects definition

Define a class of projects that may be co-represented by a single Voting Representative.
This complicates things. We can document this somewhere else if needed but seeing a list of "affiliated projects" next to each member project on our official roster (whatever/wherever that is) I think is going too far.

It would come down to the reasons behind it: Is it to keep people from asking questions about "why isn't X represented?" If so, how often does that happen? Does anyone really care about that case? I don't. Does our audience? I don't think so.