Add script templates for EditorScenePostImport

modules/mono/editor/script_templates/EditorScenePostImport/basic_import_script.cs

@@ -0,0 +1,18 @@
+// meta-description: Basic import script template
+
+#if TOOLS
+using _BINDINGS_NAMESPACE_;
+using System;
+
+[Tool]
+public partial class _CLASS_ : _BASE_
+{
+    public override Object _PostImport(Node scene)
+    {
+        // Modify the contents of the scene upon import. For example, setting up LODs:
+//      scene.GetNode<MeshInstance3D>("HighPolyMesh").DrawDistanceEnd = 5.0
+//      scene.GetNode<MeshInstance3D>("LowPolyMesh").DrawDistanceBegin = 5.0
+        return scene // Return the modified root node when you're done.
+    }
+}
+#endif

modules/mono/editor/script_templates/EditorScenePostImport/no_comments.cs

@@ -0,0 +1,15 @@
+// meta-description: Basic import script template (no comments)
+
+#if TOOLS
+using _BINDINGS_NAMESPACE_;
+using System;
+
+[Tool]
+public partial class _CLASS_ : _BASE_
+{
+    public override Object _PostImport(Node scene)
+    {
+        return scene
+    }
+}
+#endif