Provide example of 2D lidar reprojection (Malaga Urban dataset)

[jlblancoc]

Wish list:

• [x] Example that loads (part of) the Malaga Urban dataset.
• [x] Visualizes one of the cameras.
• [x] Project individual lidar scans on the camera frame.
• [ ] Project global point cloud on the camera frame.

[jlblancoc]

This is now done after:

• https://www.linkedin.com/posts/jose-luis-blanco-claraco-7511b712_lidar-malaga-mrpt-activity-7038681619410354176-ED8B?utm_source=share&utm_medium=member_desktop
• https://github.com/MRPT/malaga-urban-dataset-playback-3d