Do not use BulkCreate

- Allows for forwards / backwards compatibility
- Ref: inventree/InvenTree#11631

Author: SchrodingersGat

inventree_wireviz/processing.py

@@ -170,7 +170,8 @@ def import_harness(self, wv_file, part: Part, user):
                 self.part.bom_items.all().delete()
 
             # Bulk create new Bom Items
-            BomItem.objects.bulk_create(self.bom_items)
+            for item in self.bom_items:
+                item.save()
 
         wv_file.file.seek(0)
         wv_data = wv_file.file.read().decode('utf-8')
@@ -222,6 +223,7 @@ def extract_bom_data(self, harness: Harness):
             spn = line.get('spn', None)
             quantity = line.get('qty', None)
             unit = line.get('unit', None)
+            note = 'Wireviz BOM item'
 
             try:
                 quantity = float(quantity)