Added functions:
UFR_STATUS AdHocEmulationStart(void);
UFR_STATUS AdHocEmulationStop(void);
UFR_STATUS GetExternalFieldState(uint8_t *is_field_present);

UFR_STATUS AdHocEmulationStartM(UFR_HANDLE hndUFR);
UFR_STATUS AdHocEmulationStopM(UFR_HANDLE hndUFR);
UFR_STATUS GetExternalFieldStateM(UFR_HANDLE hndUFR, uint8_t *is_field_present);