Add a Github Action for continuous integration tests
Minor changes in gazebo_ros_plugins to display more information during the tests
Centralize time handling
Migrated the gazebo worlds launch files to the new sim time system
* The thruster_manager tests pass * Updated file header * Resolved minor conflict * Added missing files
* Changed emails, authors and copyrights Co-authored-by: LoicLiquid Co-authored-by: jpliquid
Update version, names
Update names, version
