[FIX] When the routing has a location_id external the warehouse is NULL

See merge request !4

This is logically correct, but the _get_rule overriden in
subcontracted_service does the lookup of rule based on warehouse.
If no warehouse set, fallback on product configured one.

Set picking type on tender method

See merge request !3

Fix: way to set the picking type id for po

See merge request !2

Merge branch '11.0-stage' of https://gitlab.e-mips.com.ar/lkloss/emu_custom into 11.0-stage

Set picking_type_id of product template

See merge request !1