update changelog

doc/source/doxygen-docs/changelog.md

@@ -4,6 +4,9 @@
 - Changes in apps:
   - rosbag2rawlog (ROS1): Implement conversion of NavSatFix -> mrpt::obs::CObservationGPS
 - Changes in libraries:
+  - \ref mrpt_math_grp
+    - mrpt::math::TBoundingBox: Renamed flag to bounding box from None to NoFlags to prevent autogenerated stubs from conflicting with python None type
+  - \ref mrpt_opengl_grp
     - mrpt::opengl::Texture now caches "texture names" (OpenGL texture IDs) via image data, boosting performance of MVSim boot up time.
 - Build system:
   - `mrpt-*-config.cmake` files now enforce the search of cmake dependencies in CONFIG mode, to avoid being foolish by deprecated `FindXXX()` lying around.