add volume and isosurface to the gl3d partial bundle list

Author: archmoj

lib/index-gl3d.js

@@ -14,6 +14,8 @@ Plotly.register([
     require('./scatter3d'),
     require('./surface'),
     require('./mesh3d'),
+    require('./isosurface'),
+    require('./volume'),
     require('./cone'),
     require('./streamtube')
 ]);