Extend manufacturer and make volume frendly

dcc/roster/migrations/0005_rollingclass_builder_rollingclass_wheel_arrangement.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.0.3 on 2022-04-04 18:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('roster', '0004_remove_rollingstockimage_description_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='rollingclass',
+            name='builder',
+            field=models.CharField(blank=True, max_length=128),
+        ),
+        migrations.AddField(
+            model_name='rollingclass',
+            name='wheel_arrangement',
+            field=models.CharField(blank=True, max_length=8),
+        ),
+    ]

dcc/roster/migrations/0006_remove_rollingclass_builder_and_more.py

@@ -0,0 +1,29 @@
+# Generated by Django 4.0.3 on 2022-04-04 19:14
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('metadata', '0006_manufacturer_category'),
+        ('roster', '0005_rollingclass_builder_rollingclass_wheel_arrangement'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='rollingclass',
+            name='builder',
+        ),
+        migrations.AddField(
+            model_name='rollingclass',
+            name='manufacturer',
+            field=models.ForeignKey(blank=True, limit_choices_to={'category': 'real'}, null=True, on_delete=django.db.models.deletion.CASCADE, to='metadata.manufacturer'),
+        ),
+        migrations.AlterField(
+            model_name='rollingstock',
+            name='manufacturer',
+            field=models.ForeignKey(blank=True, limit_choices_to={'category': 'model'}, null=True, on_delete=django.db.models.deletion.CASCADE, to='metadata.manufacturer'),
+        ),
+    ]

dcc/roster/migrations/0007_alter_rollingclass_wheel_arrangement.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.0.3 on 2022-04-04 19:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('roster', '0006_remove_rollingclass_builder_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='rollingclass',
+            name='wheel_arrangement',
+            field=models.CharField(blank=True, max_length=64),
+        ),
+    ]