Fix incorrect rarity value of the following products: - Cotton Fabric, Rare -> Uncommon - Wood Veneers, Uncommon -> Rare
Balancing: - Salt, Rare -> Common - Ornate Candles, Epic -> Rare - Whale Oil, Rare -> Common - Hibiscus Petals, Uncommon -> Common - Steam Motors, Common -> Rare, Use Brass in the production chain which is a rare product - Ethanol, Common -> Uncommon, the factory use Obreros - Celluloid, Uncommon -> Rare, High level New World product