* Adds 'consumable' field to BomItem model
* Add consumable field to API
* Consumable items always count as "allocated" for a build
* Add new BOM fields to BOM item checksum calculation
* Display 'consumable' status in BOM table
* Fix order of database migrations
* Update unit tests
* Fix for BOM table
* Remove "infinite" field from StockItem model
- Not used anywhere for functionality
- Hidden from the user
- Now replaced by the "consumable" concept in the BuildOrder model
* Update build order allocation table display
* Prevent auto-allocation of stock to consumable BOM items
* Ignore consumable BOM items when allocating stock to a build order
* Reimplmement "footer" row for BOM table
* Fix "can_build" calculation
- Ignore "consumable" BOM items
* Unrelated typo fix
* Tweak BOM table
* More visual tweaks to BOM table
* Add unit test for consumable field