Give the different shops their own character

At the moment when entering the shop there’s (most of the times) a nice description of what it looks like inside, but no seller. Having a character there could add a small discussion as well as small quests or serious missions. We already have something similar for the library.

I’ve made up some names for the shopkeepers and their basic character designs, but haven’t done anything in terms of their dialog. It’s something that I’d like to do but haven’t found the time to start on.

Mabe I could help a bit there as well, feel free to send me the details via pm.