MRP production filter lot

This module links manufacturing operations to the lot filtering behaviour provided by the stock picking lot filter module.

• On the operation type form used for manufacturing orders, a new "Use only available lots" checkbox appears next to the existing option for creating component lots. When ticked, lot selection for that operation type is filtered.
• When you open the lot selection popup on a manufacturing order line, the system checks the operation type of the manufacturing order (or of its linked transfer) and applies the filtering setting automatically. Only lots located in the components location of the production are offered.
• The filtering flag is calculated automatically on stock move lines, so no manual setup is needed on each line; it simply follows the operation type configuration.

It touches the stock move line model (stock.move.line) and the operation type screen (stock.picking.type), and it works together with manufacturing orders (mrp). The module installs automatically when both required modules are present.