By becoming independent from KISS-ICP, which didn't show the need to grow the supported datasets over the last year, we can add other information to the visualizer, such as intensity
This PR does not change the implementation but copy-paste all the modules required from KISS-ICP.
This PR also drops support for all the research datasets, such as KITTI, boreas, NCD, NCLT, etc. Datasets that can be loaded with the ROS ones or the Generic one, and can be also visualized with older versions of this package
Drop KISS-ICP as hard dependency
By becoming independent from KISS-ICP, which didn't show the need to grow the supported datasets over the last year, we can add other information to the visualizer, such as intensity