Add Chromium-only Blender WebEngine parity work

blender-5.2.0/doc/python_api/examples/bpy.app.handlers.0.py

@@ -0,0 +1,15 @@
+"""
+Basic Handler Example
++++++++++++++++++++++
+
+This script shows the most simple example of adding a handler.
+"""
+
+import bpy
+
+
+def my_handler(scene):
+    print("Frame Change", scene.frame_current)
+
+
+bpy.app.handlers.frame_change_pre.append(my_handler)