move playsound function to target

src/blocks/scratch3_sound.js

@@ -39,12 +39,12 @@ Scratch3SoundBlocks.prototype.getPrimitives = function () {
 
 Scratch3SoundBlocks.prototype.playSound = function (args, util) {
     var index = this._getSoundIndex(args.SOUND_MENU, util);
-    util.target.audioPlayer.playSound(index);
+    util.target.playSound(index);
 };
 
 Scratch3SoundBlocks.prototype.playSoundAndWait = function (args, util) {
     var index = this._getSoundIndex(args.SOUND_MENU, util);
-    return util.target.audioPlayer.playSound(index);
+    return util.target.playSound(index);
 };
 
 Scratch3SoundBlocks.prototype._getSoundIndex = function (soundName, util) {

src/sprites/rendered-target.js

@@ -465,6 +465,9 @@ RenderedTarget.prototype.updateAllDrawableProperties = function () {
     this.runtime.spriteInfoReport(this);
 };
 
+RenderedTarget.prototype.playSound = function (index) {
+    return this.audioPlayer.playSound(this.sprite.sounds[index].md5);
+};
 /**
  * Return the human-readable name for this rendered target, e.g., the sprite's name.
  * @override