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/migrations/0002_managedfile.py

@@ -0,0 +1,39 @@
+# Generated by Django 4.1.7 on 2023-03-23 17:35
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ManagedFile',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False)),
+                ('data_path', models.CharField(blank=True, editable=False, max_length=1000)),
+                ('data_synced', models.DateTimeField(blank=True, editable=False, null=True)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('last_updated', models.DateTimeField(blank=True, editable=False, null=True)),
+                ('file_root', models.CharField(max_length=1000)),
+                ('file_path', models.FilePathField(editable=False)),
+                ('data_file', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='+', to='core.datafile')),
+                ('data_source', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='+', to='core.datasource')),
+            ],
+            options={
+                'ordering': ('file_root', 'file_path'),
+            },
+        ),
+        migrations.AddIndex(
+            model_name='managedfile',
+            index=models.Index(fields=['file_root', 'file_path'], name='core_managedfile_root_path'),
+        ),
+        migrations.AddConstraint(
+            model_name='managedfile',
+            constraint=models.UniqueConstraint(fields=('file_root', 'file_path'), name='core_managedfile_unique_root_path'),
+        ),
+    ]