fix remap action sever: https://github.com/ros2/ros2/issues/1312#issuecomment-1705521109

[ipa-rwu]

This pull request makes targeted improvements to the LaunchFileCompiler_ROS2 class in the ROS system generator, focusing on how remapping is handled for ROS action server interfaces. The most significant change is the enhanced remapping logic for action servers, ensuring that all relevant action-related topics are correctly remapped in the generated launch description. Additionally, the import statements have been reorganized for clarity and maintainability.

Remapping logic improvements:

• Enhanced the remapping logic in the generate_launch_description method to handle RosActionServerReference interfaces by automatically remapping all associated action topics (e.g., /feedback, /status, /cancel_goal, /get_result, /send_goal) instead of just the main topic. This ensures that all parts of a ROS action are properly redirected in the launch file.

Code organization:

• Cleaned up and reordered import statements in LaunchFileCompiler_ROS2.xtend for better clarity and to remove unused imports, improving maintainability.

[ipa-nhg]

@ipa-rwu many thanks for this fix! :)