7537 add serial number to virtual machines (#16407)

* 7537 add serial number to virtual machines

* 7537 add migration

* 7537 add sn to search

* 7537 add to model documentation

* 8984 move serializer field

* 8984 add to detail view and search index

* 7537 serial_number -> serial

* 7537 fix migration

* Add missing serial field

* Give serial field higher precedence for search

---------

Co-authored-by: Jeremy Stretch <jstretch@netboxlabs.com>

netbox/virtualization/migrations/0040_virtualmachine_serial_number.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0.6 on 2024-06-04 17:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('virtualization', '0039_convert_disk_size'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='virtualmachine',
+            name='serial',
+            field=models.CharField(blank=True, max_length=50),
+        ),
+    ]