[FIX] mrp: quick create bom on new mo
[FIX] mrp: quick create bom on new mo

Before this commit, an error was raised when you tried to create a
new bill of material on a new manufacturing order.
In fact, the name_create RPC returned 'false' and slow_create()
wasn't executed.

By adding _rec_name (as in 10.0) on the corresponding model, the RPC
call will raise an error that will be caught by quick_create and
forces slow_create().

Closes #9761

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