[ADD] product: constraint unique(barcode)
[ADD] product: constraint unique(barcode)

laslabs/odoo,storm-computers/odoo,optima-ict/odoo,storm-computers/odoo,sysadminmatmoz/OCB,bplancher/odoo,laslabs/odoo,sysadminmatmoz/OCB,syci/OCB,ygol/odoo,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,syci/OCB,Elico-Corp/odoo_OCB,optima-ict/odoo,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,syci/OCB,optima-ict/odoo,dfang/odoo,dfang/odoo,sysadminmatmoz/OCB,microcom/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo,syci/OCB,ygol/odoo,laslabs/odoo,Elico-Corp/odoo_OCB,dfang/odoo,optima-ict/odoo,microcom/odoo,dfang/odoo,dfang/odoo,storm-computers/odoo,stephen144/odoo,ygol/odoo,bplancher/odoo,storm-computers/odoo,optima-ict/odoo,ygol/odoo,bplancher/odoo,syci/OCB,microcom/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo,microcom/odoo,sysadminmatmoz/OCB,optima-ict/odoo,storm-computers/odoo,stephen144/odoo,stephen144/odoo,laslabs/odoo,hip-odoo/odoo,ygol/odoo,storm-computers/odoo,hip-odoo/odoo,stephen144/odoo,ygol/odoo,dfang/odoo,sysadminmatmoz/OCB,stephen144/odoo,stephen144/odoo,microcom/odoo,syci/OCB,hip-odoo/odoo,hip-odoo/odoo,bplancher/odoo,ygol/odoo,laslabs/odoo,bplancher/odoo,bplancher/odoo,laslabs/odoo,microcom/odoo