Add wip audiocontext example

Explores using AudioContext and AnalyserNode to use frequency data from an audio file as input for a Grasshopper definition

https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API

Author: pearswj

src/examples/wip/audio/Bird-song.mp3

@@ -0,0 +1,15 @@
+
+Hello from Orange Free Sounds,
+
+
+Stock audio - Free sound effects, loops and music.
+ 
+
+There are no hidden costs or need to sign-up. 
+
+
+
+License: The sound effect is permitted for commercial use under license Creative Commons Attribution 4.0 International License
+
+
+http://www.orangefreesounds.com/