Noetic support

[chapulina]

Changes since Melodic:

• Only officially support Citadel onwards
• Don't need https://packages.osrfoundation.org
• This version will be officially released as upstream ROS packages

[chapulina]

Commented out mav_msgs because that's not yet available on Noetic: ethz-asl/mav_comm#86

[j-rivero]

I found some code still enabled for Actuators:

ros_ign_bridge/test/publishers/ign_publisher.cpp:160:  auto actuators_pub = node.Advertise<ignition::msgs::Actuators>("actuators");
ros_ign_bridge/test/publishers/ign_publisher.cpp:161:  ignition::msgs::Actuators actuators_msg;
ros_ign_bridge/test/publishers/ign_publisher.cpp:162:  ros_ign_bridge::testing::createTestMsg(actuators_msg);
ros_ign_bridge/test/publishers/ign_publisher.cpp:214:    actuators_pub.Publish(actuators_msg);

ros_ign_bridge/test/launch/test_ros_subscriber.launch:33:              <!-- /actuators@mav_msgs/Actuators@ignition.msgs.Actuators -->
ros_ign_bridge/test/launch/test_ign_subscriber.launch:28:              /actuators@mav_msgs/Actuators@ignition.msgs.Actuators

ros_ign_bridge/test/test_utils.h:1425:  void createTestMsg(ignition::msgs::Actuators &_msg)
ros_ign_bridge/test/test_utils.h:1442:  void compareTestMsg(const ignition::msgs::Actuators &_msg)
ros_ign_bridge/test/test_utils.h:1444:    ignition::msgs::Actuators expected_msg;

Do we want to keep it?

Also found references to other ROS releases or Ignition versions from Blueprint. I made a branch chapulina/noetic_jrivero

[chapulina]

Do we want to keep it?

I left the Ignition parts since they're already working. They're not very useful without the ROS side though. I guess at least we can keep it from rotting. If you think it's best to comment it out I can do that.

I made a branch

Thanks, merged it in.

---

I also rebased the noetic branch onto melodic after #72 and #96 - the noetic branch was just matching melodic before anyways, with no commits of its own.

[j-rivero]

I left the Ignition parts since they're already working. They're not very useful without the ROS side though. I guess at least we can keep it from rotting. If you think it's best to comment it out I can do that.

Nothing important, I thought on someone listing gz topics and found the Actuator in there. A part from a bit of compile/runtime overhead without real use.