Adds a Mudcrab Merchant near the Abandoned Shack.

It is happy to purchase most varieties of things, but is unable to offer most products for sale due to the many issues mudcrabs encounter when trying to restock. Future generations might carry a wider product range.

Since anyone who would hurt a perfectly peaceful little mudcrab who just wants to keep its little shop running and family fed is a horrible monster, it is not an essential NPC (merely Protected). You should use the SetEssential console command (or modify the .esp) if you are such a monster that you might not be able to keep yourself from creating hypothetical mubcrab orphans otherwise.