Engine:

• fix a regression with scene material override
• when the node OBJ/AudioListener is created, it adds pointerdown and keypress user events to detect user interaction. Once the user has clicked or pressed a key, it activates the sound library to allow for possible future sounds to be played.
• fix a bug where the viewer sound icon was not updated when the OBJ/AudioListener soundOn parameter was changed.

Editor:

no change