CoolLumiUtilities+LumiBlockComps+IOVDbSvc: Make addFolder calls unconditional.
Make calls to conddb.addFolder unconditional. Otherwise, we can fail to get CondInputLoader configured properly if there was an earlier addFolder call without a className.
Remove duplicates in the CondInputLoader.Load property. (Duplicates in IOVDbSvc.Folders are already handled in the C++ code.)
See ATR-19856.