Version 2.11.4: Released Dec 15th, 2023

Changes in apps:
- RawLogViewer: visualize mrpt::obs::CObservationRotatingScan as point cloud + range image + intensity image.
- rawlog-edit: --info command now also shows the type of each sensor label.
Changes in libraries:
- \ref mrpt_maps_grp
  - Use nanoflann RKNN search in mrpt::maps::CPointsMap::nn_radius_search()
  - Added a new point cloud class mrpt::maps::CPointsMapXYZIRT, including its Python and ROS wrappers.
- \ref mrpt_math_grp
  - mrpt::math::KDTreeCapable: Add optional argument maximumSearchDistanceSqr in many API methods to exploit the new nanoflann RKNN search method.
- \ref mrpt_opengl_grp
  - mrpt::opengl::PLY_Importer: Add support for importing point clouds with the timestamp property per point.
- \ref mrpt_obs_grp
  - mrpt::obs::CObservationRotatingScan:
    - Moved from the library mrpt-maps to mrpt-obs, since it no longer requires any mrpt::maps class.
    - Complete its implementation: insertion into point cloud, observation likelihood, visualization in RawLogViewer, etc.
BUG FIXES:
- Fix missing Threads::Threads downstream due to missing find_dependency(Threads) in MRPT cmake config files.
- Fix broken import of PLY files in SceneViewer3D (empty scene even if correctly imported).
- mrpt::math::CMatrixDynamic constructor from (row,col) was not marked explicit, leading to potential problems.
- mrpt::opengl::Viewport::setViewportPosition() did not handle negative width values as expected (i.e. pixel distances from the opposite corner).

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