Version 2.11.3: Released Nov 21st, 2023

Changes in libraries:
- \ref mrpt_core_grp
  - Add the [[nodiscard]] attribute to all functions returning a value in <mrpt/core/bits_math.h>
- \ref mrpt_maps_grp
  - mrpt::maps::COccupancyGridMap3D::insertObservation() now also handles mrpt::obs::CObservationPointCloud
  - New virtual interface mrpt::maps::NearestNeighborsCapable, implemented in:
    - All mrpt::maps::CPointsMap classes
    - All classes derived from mrpt::maps::CVoxelMapOccupancyBase
    - mrpt::maps::COccupancyGridMap2D
    - mrpt::maps::COccupancyGridMap2D
  - New virtual method mrpt::maps::CMetricMap::boundingBox()
  - mrpt::maps::TMetricMapInitializer now returns shared_ptrs instead of plain pointers.
  - mrpt::maps::TSetOfMetricMapInitializers::loadFromConfigFile() now throws if it finds a *_count entry with an unknown map class name.
- \ref mrpt_math_grp
  - New template mrpt::math::confidenceIntervalsFromHistogram()
- \ref mrpt_obs_grp
  - mrpt::maps::CMetricMap::loadFromSimpleMap() now automatically calls mrpt::obs::CObservation::load() and mrpt::obs::CObservation::unload() for all observations, so it works with lazy-load datasets.
BUG FIXES:
- Fix compilation errors if using the MCP_SAVE() macro with class enum types.
- Fix wrong cloud pose in CPointsMap::insertObservation() when inserting an mrpt::obs::CObservationPointCloud.
- Fix potential data race in mrpt::WorkerThreadsPool::pendingTasks()

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