생산 방식이번 버전 변경

가죽 가공소

leather_mill_maintenancein_game/common/building_types/production_leather.txt:193

정의in_game/common/building_types/production_leather.txt:193

194livestock = 4.2156

195sand = 1.7567

196tar = 0.2103

197tools = 0.4222

201produced = leather

202output = 4

203debug_max_profit = mills_profit_margin (0.35)

205category = mills_input