Move .js files to their own directory

experimental/SkV8Example/js/gears.js

 var IS_SKV8 = typeof document == "undefined";
 var HAS_PATH = typeof Path2D != "undefined";
 var HAS_DISPLAY_LIST = typeof DisplayList != "undefined";
 
 var NumTeeth = 24;
 var NumGears = 60;
 var DeltaTheta = Math.PI/90;
 var FaceColors = ["#000099", "#006600", "#990000", "#EEEE00"];
 var SideColors = ["#0000FF", "#009900", "#FF0000", "#CCCC00"];
 
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     var ctx = canvas.getContext("2d");
     function drawCallback() {
       onDraw(ctx);
       setTimeout(drawCallback, 1);
     }
     setTimeout(drawCallback, 1);
   }
 }
 
 console.log("HAS_PATH: " + HAS_PATH);