genarate item code function in stockControl.cs
Merge branch 'Pubudu2' of https://github.com/Kasunucsc/MotorYardInventory into Gayan2
ommit
Merge branch 'Gayan2' of https://github.com/Kasunucsc/MotorYardInventory into Pubudu2

Conflicts:
	Motor Yard inventory/Motor Yard/DatabaseConnections.cs
	Motor Yard inventory/Motor Yard/Forms/StockControl.Designer.cs
	Motor Yard inventory/Motor Yard/Forms/StockControl.cs