Reincarnation In Arcadia

- Implement a Haggle system for shop transactions using gold, silver, and copper currency. When a player enters a shop, the shopkeeper presents them with a book listing available items and their prices. To purchase, the player can choose to Buy at the listed price or attempt to Haggle. For Haggling, the player makes a Persuasion roll: if the roll is 10 or below, the shopkeeper is upset and raises the price by 5%; for each point above 10, the price decreases by 1%, up to a maximum discount of 20%. Allow only one Haggle attempt per item. The system should display the original price, the Persuasion roll result, and the final price after Haggling. Include options to Buy or Leave after each Haggle attempt. For selling items, the shopkeeper offers 50% of the item's base value, with no Haggling allowed on sales. Implement a simple call window to display the inventory book, listing items, quantities, and prices when the player enters the shop. The Elderglen Village Blacksmith, a new building.