Closes #19713: Enable recording user messages in the change log (#19908)

* Add message field to ObjectChange model

* Set max length on changelog message

* Enable changelog messages for single object operations

* Fix tests

* Add changelog message support for bulk edit & bulk delete

* Cosmetic improvements to form fields

* Fix bulk operation templates

* Add message support for bulk import/update

* Add REST API support for changelog messages (WIP)

* Fix changelog_message assignment

* Enable changelog message support for bulk deletions

* Add documentation

* Fix changelog message support for VirtualChassis

* Add ChangeLoggingMixin to necesssary model forms

* Introduce get_random_string() utility function for tests

* Incorporate changelog messages for object view tests

* Incorporate changelog messages for object bulk view tests

* Add missing mixins for changelog message support

* Tweak test to generate expected number of change records

* Finish adding tests for changelog message functionality

* Misc cleanup

* Fixes #19956: Prevent duplicate deletion records from cascading deletions

* Tweak bulk deletion test to work around cascading deletions issue

* Correct API URL

netbox/ipam/tests/test_api.py

@@ -1108,6 +1108,10 @@ class VLANTranslationRuleTest(APIViewTestCases.APIViewTestCase):
                 name='Policy 2',
                 description='foobar2',
             ),
+            VLANTranslationPolicy(
+                name='Policy 3',
+                description='foobar2',
+            ),
         )
         VLANTranslationPolicy.objects.bulk_create(vlan_translation_policies)
 
@@ -1152,7 +1156,8 @@ class VLANTranslationRuleTest(APIViewTestCases.APIViewTestCase):
         ]
 
         cls.bulk_update_data = {
-            'policy': vlan_translation_policies[1].pk,
+            'policy': vlan_translation_policies[2].pk,
+            'description': 'New description',
         }