Adds a general shape for discussions support

[orta]

Adds a new function route for discussions on the DT repo.

Main features:

• When you ask for help on a dt module then it requires you have [module-name] in the title somewhere, then it pings everyone and sets a label on the discussion for you. If you don't it asks you for info. If you don't it asks for it.

Some things that this means:

• We will have categorized discussions which haven't been hooked up via a label
• People can keep see overall what's going on with a dep via the labels
• It doesn't rely on folks doing the work to find the right people to ping, which doesn't seem to happen too often

Future: When you post a new request for a dt module, it pings the discord

[orta]

OK, I think this is pretty ready to go

[elibarzilay]

I did some tweaks (main one is negating the result of the verify function), and marked all of the resolved comments as such.

I could do some of these too, but you said that you did them so I'm guessing that maybe you forgot to push some more changes, and if I'll fix these I'll create a conflict nightmare for you -- so left them as-is.

[orta]

Alright, I'm gonna nurse this deploy