[IMP] mrp: bom structure without product.product
[IMP] mrp: bom structure without product.product

Since the product configurator it could exist a product.template
without product.product (variant selected on SO/PO). however the
bom cost and structure report needed at least one product.product

This commit modifies the bom report in order to use the standart price
of the product.template instead of the product.product since it's the
same. It also adapt the search on attachment.

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo