Task #10738: remove casacore warnings

CEP/DP3/DPPP/include/DPPP/ApplyBeam.h

CEP/DP3/DPPP/include/DPPP/ApplyBeam.tcc

CEP/DP3/DPPP/include/DPPP/ApplyCal.h

CEP/DP3/DPPP/include/DPPP/Averager.h

CEP/DP3/DPPP/include/DPPP/BaselineSelection.h

CEP/DP3/DPPP/include/DPPP/CursorUtilCasa.h

CEP/DP3/DPPP/include/DPPP/DPBuffer.h

CEP/DP3/DPPP/include/DPPP/DPInfo.h

CEP/DP3/DPPP/include/DPPP/DPInput.h

CEP/DP3/DPPP/include/DPPP/DPRun.h

CEP/DP3/DPPP/include/DPPP/DemixInfo.h

CEP/DP3/DPPP/include/DPPP/DemixWorker.h

CEP/DP3/DPPP/include/DPPP/Demixer.h

CEP/DP3/DPPP/include/DPPP/EstimateNew.h

CEP/DP3/DPPP/include/DPPP/Filter.h

CEP/DP3/DPPP/include/DPPP/FlagCounter.h

CEP/DP3/DPPP/include/DPPP/GainCal.h

CEP/DP3/DPPP/include/DPPP/H5Parm.h

CEP/DP3/DPPP/include/DPPP/MSReader.h

CEP/DP3/DPPP/include/DPPP/MSUpdater.h