Added merchants for all Frogg furniture. Now once you have a set of furniture you can spawn a merchant with it that sells more of the furniture you need for guaranteed access in the future. (Frogg furniture + commerce tags)

Added uncommon and rare weapons randomly into the weapon specialty merchant (commerce + combat + storage tags)

Changed some rarity values for several merchants for a bunch of random stuff. This will continue to happen into the future. The file defining merchant inventories is huge so sometimes I miss things. :)