Replacement of es5 functions to es6 classes feat p5.listener3D (#524)

Author: endurance21

src/app.js

@@ -38,14 +38,22 @@ import './filter';
 import EQ from './eq';
 p5.EQ = EQ;
 
+
+
+import listener3D from './listener3d';
+p5.listener3D = listener3D;
+
+
+
 import Panner3D from './panner3d';
 p5.Panner3D = Panner3D;
 
-import './listener3d';
+
 
 import Delay from './delay';
 p5.Delay = Delay;
 
+
 import './reverb';
 import './metro';
 import './looper';
@@ -56,10 +64,12 @@ p5.Compressor = Compressor;
 
 import './soundRecorder';
 
+
 import peakDetect from './peakDetect';
 p5.peakDetect = peakDetect;
 
 
+
 import Distortion from './distortion';
 p5.Distortion = Distortion;