Python API: add bpy.context.property, for property under the mouse cursor

This can be useful for example to add custom operators to the property
context menu.

Pull Request: https://projects.blender.org/blender/blender/pulls/107280

doc/python_api/examples/bpy.context.property.py

@@ -0,0 +1,10 @@
+"""
+Get the property associated with a hovered button.
+Returns a tuple of the datablock, data path to the property, and array index.
+"""
+
+# Example inserting keyframe for the hovered property.
+active_property = bpy.context.property
+if active_property:
+    datablock, data_path, index = active_property
+    datablock.keyframe_insert(data_path=data_path, index=index, frame=1)