Add description field to CircuitType (#3655)

netbox/circuits/migrations/0017_circuittype_description.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.6 on 2019-12-10 18:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('circuits', '0016_3569_circuit_fields'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='circuittype',
+            name='description',
+            field=models.CharField(blank=True, max_length=100),
+        ),
+    ]