[ADD] sales_barcodescan: hit the add product button for barcode scan

[prbo-odoo]

• Allows to add quantity through barcode search
• If product found on scan -> Hit the add button with qty 1 on every unique barcode else -> raise toster - no products founds with this barcoe
• scaling the same product increase the qty with same order line
• all scaled product at first page

[robodoo]