Added the ability to determine whether to start cooking when adding a dish to an order

Starting from V7, the product IProduct has the property ImmediateCookingStart, which indicates whether the service should be initiated or cooking should start immediately after adding to the order.

This property in Syrve Office corresponds to the “Print on Add” setting in the product card. This setting is common for both dishes (IOrderCookingItem) and time-based services (IOrderServiceItem), but the semantics differ:

• for dishes — whether to start cooking the dish immediately after adding to the order (PrintOrderItems),
• for time-based services — whether to start the service immediately after adding to the order (StartService).