Changed module names to lower-case and group to org.opencadc to conform to maven repo naming standards

Story 1840. Added support for all commands. Refactored code to promote code reuse. The commands have not been end-to-end tested because required credentials and ACI's needed to execute these commands (except for --list) are not in place.

Story 1840. Initial setup of this module with the command line framework. The 'List' command appears to work.