Add columns to avoid MemoryError on an existing Odoo instance
with lots of data.
payment_order_ok on account.move is computed from payment_order_ok
on account.payment.mode which are both introduced by this module,
so nothing to compute.
(see AccountMove._compute_payment_order_ok() in models/account_move.py)
partner_bank_id on account.move.line requires payment_order_ok to be True
which it won't be as it's newly introduced - again nothing to compute.
(see AccountMoveLine._compute_partner_bank_id() in models/account_move_line.py)
