ROS - All sensors and car support

[e1d1s1]

Many improvements to ROS package "airsim_ros_pkgs"

• ROS Support for all sensor types
• Support for ENU frames typical of ground vehicles
• Better support for multiple agents
• Option to publish sim /clock topic
• ROS Joystick support for car via python
• Bring CarApiBase interface to parity with MultirotorApiBase

[ghost]

All CLA requirements met.

[rajat2004]

This will be a great improvement to the ROS wrapper, thanks!
Can you add some details about the new sensor publishers, etc in airsim_ros_pkgs.md
Just a light lookover, will try to test it out soon

[e1d1s1]

Should be all set for merge. Let me know if you see any other issues.

[phil333]

nice work on the car interface. I found 1 little issue: Naming the car anything other than drone_1 means no control api, because the ros interface is looking for /airsim_node/drone_1/car_cmd and this is hard-coded. This is not a big deal though if you mention it in the documentation. Would be great to see this addition on the main branch.

[e1d1s1]

nice work on the car interface. I found 1 little issue: Naming the car anything other than drone_1 means no control api, because the ros interface is looking for /airsim_node/drone_1/car_cmd and this is hard-coded. This is not a big deal though if you mention it in the documentation. Would be great to see this addition on the main branch.

You should be able to change the topic via launch config:
node: car_joy
param: car_control_topic

The vehicle name/ID comes out of the airsim config, so if you alter this topic to match it "should" be fine.