* maa_gpio_context bcomes an opaque pointer
* C++ wrapper class Gpio created
* swig now uses C++ wrapper Gpio to generate API
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
* fixes maa_gpio_read by using simple posix file io
* fixes blink sample to have much more error checking
* blink sample now takes an argument
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>