9063_*.mp3: Added mp3 with bell sound

Downloaded from freeSFX.co.uk
Author: flowfx
Title: Medium Small Bell Ring Version 1
Id: 9063
aup/bell*: Added Audacity bell project

Bell sound was trimmed form the leading silent section.
bell.wav: Added export from bell.aup
bell.wrl: Added bell sound on click

Bell sound effect file: bell.wav