For each MRP Parameter, we will calculate its supply method based on the procurement rules path. We will go back in the rules until we find that the action is "buy" or "manufacture", or until the action is "Pull From" or "Pull & Push" and the supply method is "Take from Stock".
This means we will show what the latest rule is if we were to do a procurement. Although it would be possible that the final action does not end up being executed if stock already exists in one of the intermediate locations.
`product_uom_id` is not in the allowed fields for stock.quant
when in inventory mode. See `_get_inventory_fields_create` method
in stock.quant for more details.
* You can know integrate with different forecasting mechanisms.
As a consequence integration with stock_demand_estimate is moved
to a new module (mrp_multi_level_estimate).
* As agreed by the authors, the module is re-licensed to LGPL-3.
