Adds SiteGroup.comments in the required locations

- [x] 1. Add the field to the model class
- [x] 2. Generate and run database migrations
- [NA] 3. Add validation logic to clean()
- [NA] 4. Update relevant querysets
- [x] 5. Update API serializer
- [x] 6. Add fields to forms
    - [x] dcim.forms.model_forms.LocationForm, create/edit (e.g. model_forms.py)
    - [x] dcim.forms.buld_edit.LocationBulkEditForm, bulk edit
    - [x] dcim.dorms.bulk_import.LocationImportForm, CSV import
    - [x] filter (UI and API)
- [x] 7. Extend object filter set
- [x] 8. Add column to object table
- [x] 9. Update the SearchIndex
- [x] 10. Update the UI templates
- [x] 11. Create/extend test cases
    - [NA] models
    - [x] views
    - [NA] forms
    - [x] filtersets
    - [x] api
- [x] 12. Update the model's documentation

netbox/dcim/forms/bulk_edit.py

@@ -98,12 +98,13 @@ class SiteGroupBulkEditForm(NetBoxModelBulkEditForm):
         max_length=200,
         required=False
     )
+    comments = CommentField()
 
     model = SiteGroup
     fieldsets = (
         FieldSet('parent', 'description'),
     )
-    nullable_fields = ('parent', 'description')
+    nullable_fields = ('parent', 'description', 'comments')
 
 
 class SiteBulkEditForm(NetBoxModelBulkEditForm):

netbox/dcim/forms/bulk_import.py

@@ -82,7 +82,7 @@ class SiteGroupImportForm(NetBoxModelImportForm):
 
     class Meta:
         model = SiteGroup
-        fields = ('name', 'slug', 'parent', 'description')
+        fields = ('name', 'slug', 'parent', 'description', 'comments', 'tags')
 
 
 class SiteImportForm(NetBoxModelImportForm):

netbox/dcim/forms/model_forms.py

@@ -98,6 +98,7 @@ class SiteGroupForm(NetBoxModelForm):
         required=False
     )
     slug = SlugField()
+    comments = CommentField()
 
     fieldsets = (
         FieldSet('parent', 'name', 'slug', 'description', 'tags'),
@@ -106,7 +107,7 @@ class SiteGroupForm(NetBoxModelForm):
     class Meta:
         model = SiteGroup
         fields = (
-            'parent', 'name', 'slug', 'description', 'tags',
+            'parent', 'name', 'slug', 'description', 'comments', 'tags',
         )