Add "allow_variants" field to BomItem

InvenTree/part/migrations/0066_bomitem_allow_variants.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2 on 2021-06-01 03:58
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0065_auto_20210505_2144'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='bomitem',
+            name='allow_variants',
+            field=models.BooleanField(default=False, help_text='Stock items for variant parts can be used for this BOM item', verbose_name='Allow Variants'),
+        ),
+    ]