error handle in add new stock
Merge branch 'Pubudu2' of https://github.com/Kasunucsc/MotorYardInventory into Gayan2

Conflicts:
	Motor Yard inventory/Motor Yard/Forms/MainMenu.cs
ommit
Merge branch 'Gayan2' of https://github.com/Kasunucsc/MotorYardInventory into Pubudu2

# By unknown
# Via unknown
* 'Gayan2' of https://github.com/Kasunucsc/MotorYardInventory:
  ommit
  error handle in add new stock

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