Add ability to create a new inherited scene from code

[ryevdokimov]

Implements: #3907

Supersedes: #64217

This is done by adding an inherit parameter to open_scene_from_path()

This will allow plugins to be able to create new inherited scenes, which can enhance user workflows.

[kitbdev]

To fix the compilation error, you need to add compatibility method bindings in a new editor_interface.compat.inc file.
I recommend looking at how it was done for editor_plugin in https://github.com/godotengine/godot/pull/88081/files#diff-005a1ef5a7f4fa8db6b115528dbd935d1fc2836bf579c3ceb72f77ad848a4161.
The number at the end of the compat methods should be this PR number, so it would be _open_scene_from_path_90057(const String &scene_path).
The errors should also be added to misc\extension_api_validation\4.2-stable.expected

[passivestar]

Tested, it works. I managed to make a button that creates an inherited scene from gltf at the same path like so:

var path = EditorInterface.get_selected_paths()[0]
var new_path = path.get_basename() + ".tscn"
var main_scene_path = EditorInterface.get_edited_scene_root().scene_file_path
EditorInterface.open_scene_from_path(path, true)
EditorInterface.save_scene_as.call_deferred(new_path, false)
EditorInterface.open_scene_from_path.call_deferred(main_scene_path)