v0.3.0

Added

• drive_api_msgs a ROS2 only package with messages for Drive-API.
• teensy_drive_msgs a ROS2 only package with messages for Teensy.
• Repository can be built in ROS2 using colcon.

Changed

• Message type autoware_auto_msgs/TrajectoryPoint.msg is created based on the ROS version.
• messages is now an ignored metapackage.
• Bump all versions to common 0.1.0.