GEOMESA-334, 335 Add zookeepers, instance name and Separate Export from FeaturesTools

zookeepers and instance-name can be added to any command line argument. This is useful for cases where instanceName and zookeepers
cannot automatically be found. Additionally, auths and visibilities have been added to all commands. Finally, Export has been separated
out of FeaturesTools and Tools to add more flexibility in Export.
The reason I turned it off was to eliminate a Zookeeper exception issue happening after every export. But I can take it out and sleep the thread for about 1 second to eliminate it as well., if that's better.