Closes #11890: Sync/upload reports & scripts (#12059)

* Initial work on #11890

* Consolidate get_scripts() and get_reports() functions

* Introduce proxy models for script & report modules

* Add add/delete views for reports & scripts

* Add deletion links for modules

* Enable resolving scripts/reports from module class

* Remove get_modules() utility function

* Show results in report/script lists

* Misc cleanup

* Fix file uploads

* Support automatic migration for submodules

* Fix module child ordering

* Template cleanup

* Remove ManagedFile views

* Move is_script(), is_report() into extras.utils

* Fix URLs for nested reports & scripts

* Misc cleanup

netbox/core/choices.py

@@ -20,7 +20,6 @@ class DataSourceTypeChoices(ChoiceSet):
 
 
 class DataSourceStatusChoices(ChoiceSet):
-
     NEW = 'new'
     QUEUED = 'queued'
     SYNCING = 'syncing'
@@ -34,3 +33,17 @@ class DataSourceStatusChoices(ChoiceSet):
         (COMPLETED, _('Completed'), 'green'),
         (FAILED, _('Failed'), 'red'),
     )
+
+
+#
+# Managed files
+#
+
+class ManagedFileRootPathChoices(ChoiceSet):
+    SCRIPTS = 'scripts'  # settings.SCRIPTS_ROOT
+    REPORTS = 'reports'  # settings.REPORTS_ROOT
+
+    CHOICES = (
+        (SCRIPTS, _('Scripts')),
+        (REPORTS, _('Reports')),
+    )