Add option 'mandate_required' on payment orders
Autoselect first valid mandate on customer invoice that have a payment mode 'mandate_required' = True
Add option on select move lines to pay wizard to allow selection of litigation moves (unchecked by default), in order to integrate the feature of the module account_payment_blocking
Steps to reproduce
------------------
* Create a payment mode with "Link to Bank Account" = "Variable".
* Select several journals.
* Create a payment order with that payment mode.
* Save.
* Go to other menu and come back to payment order.
* Try to select a journal: the list is empty.
Fixes#544
Description of the issue/feature this PR addresses:
The modules adds `{'invisible': [('parent_id', '!=', False)]}` attribute
to `banks` group on res.partner form view. The rationale for this,
according to a comment on the view itself is:
> ... there is a domain on the 'partner_id' field of res.partner.bank
(base module) which prevents the selection of a contact
However, the domain the comment refers to is
`['|', ('is_company', '=', True), ('parent_id', '=', False)]`
So, I think the domain for the group to be invisible should be
`[('parent_id', '!=', False), ('is_company', '=', False)]`. In addition,
a parent that is a company is always its own commercial partner. So we
should have access to its payment information.
Current behavior before PR:
Bank and mandates information is hidden when a partner is a company and
has a parent.
Desired behavior after PR is merged:
Banking information should be visible if a partner is a company.
Add button "Add to payment/debit order" on invoice form view
Started to integrate payment transfer in account_payment_order (not finished at all though)
Various fixes/changes/improvements/...
When invoicing from dropshipping, the same picking serves for both
invoicing sale and purchase orders. The OCA module
stock_dropshipping_dual_invoice makes that this happens, but
as the picking is the same, it contains both the sale and the
purchase reference, making that the resulting invoices don't have
the correct payment mode. This is harmless for the rest of
operations, as the dictionary query is provided with the proper
default value. On v9, dropshipping dual invoice has been merged
into core, so this patch for sure will be welcome in that version
(if the used method is the same).
