[FIX] product: pricelists based on the supplier prices now return first supplier price if partner not in suppliers instead of returning 0

Without this, sale pricelists cannot be based on supplier prices as the partner is never a supplier so the price would be 0
Note: behavior change ok with fp
[FIX] mrp: chain product move and MO locations

When validating a SO containing a `make to stock` + `manufacture` product
(with bom + orderpoint), we have the following stock moves:
* Product move
* Manufacturing order
Selling 1 such product would yield 2 as incoming quantity, an
inconsistency that this commit solves by setting the location_id of the
product move to the MO's location_dest_id (in the same fashion that
the create_pickings method does in an mts/buy case)

opw-616229
[FIX] ir_qweb: contact widget: use name_get instead of display_name

display_name field is overidden in res.partner in order to pop the context
key leading to show the address, and we want the address.
[FIX] web: inhibit on change flag when validating editable list

To valid all editable list line, we iterate on the lines and set the editor form with the line value, using set_value.
The _inhibit_on_change_flag should be set to True to avoid triggering on changes events

opw-617395
[MERGE] forward port of branch 7.0 up to cd69dee
[MERGE] forward port of branch saas-3 up to c666030
Revert "[FIX] mrp: chain product move and MO locations"

This reverts commit 61a8971db510dbb0e087bba09858fe8b94c7b16d.

This rev. is from a 7.0 forward port b4d602fdd3379a0310ec0b9a56f9b88226

This is no longer needed in 8.0, with the new WMS