Revision for KitchenOrder

In Api V8 for kitchen orders, a revision has been added - a number that represents the last change number of the order.

The revision counter is common for all kitchen orders. Thus, if the first kitchen order was changed and its revision number became 59, the next changed kitchen order will receive revision number 60.

In this regard, a new method GetChangedKitchenOrders has been added. It takes the revision number as an input parameter, and all kitchen orders with a number higher than that will be returned as an object ChangedEntities<IKitchenOrder>, which will also contain the latest revision among all returned orders.