Restart harness backend service.

        Please start the harness controller before running the cases, otherwise, nothing happens

def _init_harness(self):
        """Restart harness backend service.

        Please start the harness controller before running the cases, otherwise, nothing happens
        """
        self._hc = HarnessController(self.result_dir)
        self._hc.stop()
        time.sleep(1)
        self._hc.start()
        time.sleep(2)

        harness_config = ConfigParser.ConfigParser()
        harness_config.read('%s\\Config\\Configuration.ini' % settings.HARNESS_HOME)
        if harness_config.has_option('THREAD_HARNESS_CONFIG', 'BrowserAutoNavigate') and \
                harness_config.getboolean('THREAD_HARNESS_CONFIG', 'BrowserAutoNavigate'):
            logger.error('BrowserAutoNavigate in Configuration.ini should be False')
            raise FailError('BrowserAutoNavigate in Configuration.ini should be False')
        if settings.MIXED_DEVICE_TYPE:
            if harness_config.has_option('THREAD_HARNESS_CONFIG', 'EnableDeviceSelection') and \
                    not harness_config.getboolean('THREAD_HARNESS_CONFIG', 'EnableDeviceSelection'):
                logger.error('EnableDeviceSelection in Configuration.ini should be True')
                raise FailError('EnableDeviceSelection in Configuration.ini should be True')