[Ves] Questions on ViewerApp shader initialization

[David Thompson]

Hi Pat,

> 1.  vesKiwiViewerApp serves as the main app logic for KiwiViewer, but it's not a great general base class, so improvements would be great!  I'd like to see all the shader management removed from vesKiwiViewerApp, and relocated into a new standalone class.

I'm not sure I have a clear vision of what would be the most useful in terms of shader management yet, but I'll think about it.

> 2. The Uniforms vector, and the other vectors declared there, are relics from before kiwi and ves libraries used shared_ptr.  The vectors were for ownership.  If you are going over this code, please remove them if you can.

That should be pretty simple. I'll put it on my todo list.

	Thanks,
	David