xcb: Added Tizen 2.3 adaptation

xcb: Added Tizen 2.3 adaptation

Adaptation includes:
* Application lifecycle depending on X atoms. Tizen 2.3
native application lifecycle depends on X window. So we react on
_X_ILLUME_ACTIVATE|DEACTIVATE_WINDOW atoms and suspend or activate application
accordingly.
* Platform native interface function for setting device orientation. This api
is defined in QtPlatformHeaders/qxcbfunctions.h and can be used from Tizen
application wrapper code.

Change-Id: I0105717dcb4f652dd27e891a5f6c21388d8399ca
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Reviewed-by: Tomasz Olszak <olszak.tomasz@gmail.com>