Add audioFeedback mechanism

Add an audio feedback mechanism
to play confirmation or rejection sound on specific actions that are not visually detectable.
- Duplicate (mainly for the HMD use case where the new entity is generated at the exact same position)
- Parent and Unparent (because it not visually detectable in HMD if the action was successful or not)

scripts/system/create/audioFeedback/audioFeedback.js

@@ -0,0 +1,34 @@
+//
+//  audioFeedback.js
+//
+//  Created by Alezia Kurdis on September 30, 2020.
+//  Copyright 2020 Vircadia contributors
+//
+//  This script add audio feedback (confirmation and rejection) for user interactions that require one.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+audioFeedback = (function() {
+    var that = {};
+    
+    var confirmationSound = SoundCache.getSound(Script.resolvePath("./sounds/confirmation.mp3"));
+    var rejectionSound = SoundCache.getSound(Script.resolvePath("./sounds/rejection.mp3"));
+    
+    that.confirmation = function() { //Play a confirmation sound
+        var injector = Audio.playSound(confirmationSound, {
+            "volume": 0.3,
+            "localOnly": true
+        });
+    }
+
+    that.rejection = function() { //Play a rejection sound
+        var injector = Audio.playSound(rejectionSound, {
+             "volume": 0.3,
+            "localOnly": true           
+        });
+    }
+
+    return that;
+})();