Update changeFramePreserveLocation() Doxygen
Update changeFramePreserveLocation() Doxygen

[ci skip]
opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core