add humble-navigation2

navigation2/nav2_msgs/msg/CostmapMetaData.msg

@@ -0,0 +1,23 @@
+# This hold basic information about the characteristics of the Costmap
+
+# The time at which the static map was loaded
+builtin_interfaces/Time map_load_time
+
+# The time of the last update to costmap
+builtin_interfaces/Time update_time
+
+# The corresponding layer name
+string layer
+
+# The map resolution [m/cell]
+float32 resolution
+
+# Number of cells in the horizontal direction
+uint32 size_x
+
+# Number of cells in the vertical direction
+uint32 size_y
+
+# The origin of the costmap [m, m, rad].
+# This is the real-world pose of the cell (0,0) in the map.
+geometry_msgs/Pose origin