Add Relapse/Fortified/Scarp Weapon Boxes drops in 200+ Dungeons

Imported from legacy Flarum.
Original author: titano5209 (Flarum #812)

I suggest to replace those weapons drop with box drops that weight 10
Reasoning:
after the halved npc selling price and the drop increase, farming and go back to npc every 2-3 minutes its quite bad
especially in upper levels dungeons
Boxes will extend the farming before going back to the npcs