Adds 'consumable' field to BomItem model (#2890)

* 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

InvenTree/part/api.py

@@ -1640,8 +1640,9 @@ class BomFilter(rest_filters.FilterSet):
     """Custom filters for the BOM list."""
 
     # Boolean filters for BOM item
-    optional = rest_filters.BooleanFilter(label='BOM line is optional')
-    inherited = rest_filters.BooleanFilter(label='BOM line is inherited')
+    optional = rest_filters.BooleanFilter(label='BOM item is optional')
+    consumable = rest_filters.BooleanFilter(label='BOM item is consumable')
+    inherited = rest_filters.BooleanFilter(label='BOM item is inherited')
     allow_variants = rest_filters.BooleanFilter(label='Variants are allowed')
 
     # Filters for linked 'part'