Steps to add a 3D lidar to a turtlebot in Gazebo Harmonic

[Gglaspell]

Hoping this helps anyone who wants to add a 3D LiDAR to a TurtleBot3 in Gazebo Harmonic.

GitHub - gglaspell/3D_lidar_tb3_gz_harmonic: Files to add a 3D lidar to a turtlebot3 in Gazebo...