Update StFmsClusterFinder Doxygen comments
Update StFmsClusterFitter Doxygen comments
Update StFmsEventClusterer Doxygen comments
Update StFmsFittedPhoton Doxygen comments
Update StFmsGeometry Doxygen comments
Update StFmsTower Doxygen comments
Update StFmsTowerCluster Doxygen comments
Update TowerClusterAssociation Doxygen comments

Normally we may not want to Doxygen-ise implementation details like
this, but I have done so as the documentation is currently intended for
developers and reviewers.
Update StFmsCluster Doxygen comments
Update StFmsPoint Doxygen comments
Update StFmsPointMaker Doxygen comments
Update StMuFmsCluster Doxygen comments
Update StMuFmsPoint Doxygen comments