Footprint and inflation radius are statically set to the same values, independent of the robot

[henrik973]

https://github.com/match-ROS/match_mobile_robotics/blob/noetic/mir/mir_navigation/config/Costmap/costmap_common_params.yaml
footprint: [[0.506,-0.32],[0.506,0.32],[-0.454,0.32],[-0.454,-0.32]]

https://github.com/match-ROS/match_mobile_robotics/blob/noetic/mir/mir_navigation/config/Costmap/costmap_global_params.yaml
inflation_radius: 0.3

https://github.com/match-ROS/match_mobile_robotics/blob/noetic/mir/mir_navigation/config/Costmap/costmap_local_params.yaml
inflation_radius: 0.6