Add output-only on UI

judge/migrations/0155_output_only.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.2.18 on 2023-03-10 04:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0154_add_submission_indexes"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="problemdata",
+            name="output_only",
+            field=models.BooleanField(
+                help_text="Support output-only problem",
+                null=True,
+                verbose_name="is output only",
+            ),
+        ),
+    ]