Updated webcl-kernel-result to use WebCLProxy

Signed-off-by: Andre Luiz Viana Loureiro <andre.vl@samsung.com>
Add class docs to WCLProxy

 * Add docs to all class.
 * Add TODO docs to all functions.

 Signed-off-by: Ragner Magalhaes <ragner.magalhaes@gmail.com>