Enhancements for Fractional Quantity of Goods

The ability to obtain settings related to weighted goods has been added.

A new property has been added to the product IProduct.UseBalanceForSell, which indicates whether the sale of this product by weight is available.

A new property has been added to the restaurant IRestaurant.FractionalAmountMode, which displays the setting of the trading enterprise: input of fractional quantities of goods.