Update readme
* Tried out controller support (ps3 pad)
* Have to write tests for controller (if plugged in)
* some fixes to interfaces and design
* controllers should work for dispatching currently - polling is not yet supported
* controller auto-reconnect not yet working - controller is recognized but input is not polled event is not fired by sdl..
Updated device, processor classes
Updated cmake to reflect optional samples and gtests
getting rid of guardhit msg