TouchScreen_Calibration_WaitForPressedState() function

TouchScreen_Calibration_WaitForPressedState : wait until a particular press/depress action The function is managing anti-rebound : that is the awaited state when detected needs to be stable for a sufficient time (timeout time), otherwise a new sense to search for awaited state is performed. When awaited state is found and state is stable for timeout duration, the function is exited.