npc changes

MERCHANT
- Poison Knives on a blood moon
- Throwing Spears?
- Possibly Barrels for cheap storage and other cheap furniture items

NURSE
- Potions that are unlocked after certain areas of progression, or this could go to the Merchant

ARMS DEALER
- Weapons that scale similar to the Merchant's tools

WIZARD
- Sells basic magic armor and weaponry that can be upgraded, sort of like the Tome and such

DEMOLITIONIST
- Sells explosive and incindenary ammunition

DRYAD
- Sells the Magic Mirror

CLOTHIER
- A larger selection of clothing and hair

GOBLIN TINKERER
- Give an option for erasing prefixes and reverting an item to its base condition
- Possibly sell some low-grade laser weapons or more technological weapons