Before this commit, after install purchase_stock, old pol records won't
update their qty_received when receive products. This is because their
qty_received_method are not updated during the installation.
Task 2230811
PR #49921
We want to break the dependency between stock and purchase
for our furtur developpement. For more modularity, a new
bridge module 'purchase_stock' is created.
This commti move part of business code, views, data, ...
related to stock management from purchase into purchase_stock
without changing any feature.
Task #47927