[IMP] account: allow currency and amount currency on bank statement lines as an optional field
[IMP] account: allow currency and amount currency on bank statement lines as an optional field

So that people encoding their statements manually can directly encode the exchange rate data on their lines.

closes odoo/odoo#37262

Signed-off-by: Laurent Smet <1328e3a5817ff065354bd0f7f4073cbb6dcc7eca@users.noreply.github.com>

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