Restrict access to moves, pickings and locations

I've just published a new module in community addons

This module allows filtering of pickings and stock inventories by location. It's useful to restrict stock workers to only see those pickings that are relevant to them.

Technically: pickings get their unused location_id, location_dest_id fields redefined to be filled in from their moves' data. Inventories get a location_ids field from their lines' data.