Commonly used messages in ROS. Includes messages for actions (actionlib_msgs), diagnostics (diagnostic_msgs), geometric primitives (geometry_msgs), robot navigation (nav_msgs), and common sensors (sensor_msgs), such as laser range finders, cameras, point clouds.
The Load map service is to be handled by map_server. It will load (or reload) a map from the given file path when called.
This would allow completion of pull request ros-planning/navigation#461 Which would close ros-planning/navigation#279