Added basic launch file for mg_lidar

mg_lidar/launch/launch.py

@@ -0,0 +1,28 @@
+from launch import LaunchDescription
+from launch.substitutions import PathJoinSubstitution
+from launch_ros.actions import Node
+from launch_ros.substitutions import FindPackageShare
+
+from pathlib import Path
+
+def generate_launch_description():
+
+    basedir = FindPackageShare("mg_lidar")
+
+    lidar_config = PathJoinSubstitution([basedir, "config/lidar.yaml"])
+
+    return LaunchDescription([
+        Node(
+            package='mg_lidar',
+            executable='mg_scanner',
+            output="screen",
+            parameters=[lidar_config]
+        ),
+        Node(
+            package='rplidar_ros',
+            executable='rplidar_composition',
+            output="screen",
+            parameters=[lidar_config]
+        ),
+    ])
+