Update utility to test device connections

Update utility to test device connections

 * Helper class to defining command line parameters
 * Parameters:
 * --device-count           : number of devices connection to the controller
 * --controller-ip          : controller IP address
 * --ssl                    :
 * --threads                : number of thread shall be used for executor
 * --port
 * --timeout                : timeout in seconds for whole test
 * --scenarioTries          : number of tries of each step of scenario
 * --timeBetweenScenario    : time in milliseconds between tries of steps of scenario
 * --configurationName      : required parameter if using configuration load or configuration save
 * --configurationLoad
 * --configurationSave

3/9/16 - Checkstyle corrections

Change-Id: Iec24bf37bb6cce534ce87ca80585d0f53d0dd638
Signed-off-by: Jozef Bacigal <jbacigal@cisco.com>
Signed-off-by: Jozef Bacigal <jozef.bacigal@pantheon.tech>