Add migration to create a 'manufacturer' field to the SupplierPart model

(cherry picked from commit 890e938662)

InvenTree/company/migrations/0018_supplierpart_manufacturer.py

@@ -0,0 +1,19 @@
+# Generated by Django 2.2.10 on 2020-04-13 03:29
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('company', '0017_auto_20200413_0320'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='supplierpart',
+            name='manufacturer',
+            field=models.ForeignKey(blank=True, help_text='Select manufacturer', limit_choices_to={'is_manufacturer': True}, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='manufactured_parts', to='company.Company'),
+        ),
+    ]