[16.0][ADD] stock_picking_product_link_margin

[carmenbianca]

Super simple module. The customer need is to more easily access the margin list view from stock pickings.

Internal task: https://gestion.coopiteasy.be/web#id=11376&action=479&model=project.task&view_type=form&menu_id=536

[victor-champonnois]

To give a bit more context : this module is for supermarkets (or any store) who use product_margin_classification but want to apply the margin when receiving the delivery, rather than when receiving the invoice.

[victor-champonnois]

Functionnal review OK

[carmenbianca]

@victor-champonnois added your target audience description to the documentation

[github-actions]

There hasn't been any activity on this pull request in the past 4 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days.
If you want this PR to never become stale, please ask a PSC member to apply the "no stale" label.

[carmenbianca]

Not stale :) @remytms can you review?

[carmenbianca]

Hi @legalsylvain. I've added a note to CONFIGURE.rst:

In order to use this module, you must enable product variants. The necessary margin view does not exist for product templates.

But our client doesn't want to enable product variants, so I'll have to chase this down.

Before I run off to apply patches everywhere, is there a reason why the list view is for product.product instead of product.template?