add importhub first draft

src/c3nav/mapdata/migrations/0096_merge_20231225_2216.py

@@ -0,0 +1,14 @@
+# Generated by Django 4.2.7 on 2023-12-25 21:16
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0095_accesspermission_for_session'),
+        ('mapdata', '0095_import_block'),
+    ]
+
+    operations = [
+    ]