Property count MUST have minimum: 0 to handle empty collections in all ListOf... schemas

[larsolofsson]

See issues #314 and #291

[larsolofsson]

Change property count to have minimum: 0 in the following schemas

• ListOfSupplierOrders
• ListOfLogisticsDeliveryNotes
• ListOfLogisticsDeliveryInstructions
• ListOfLogisticsInventoryChanges
• ListOfLogisticsShipments

See commit c0bf53f