warning fixes in Mvd

The MR fixes the following warnings (that can be seen here: https://cdash.gsi.de/buildSummary.php?buildid=432309):

===

/home/cbmdock/cbmroot/core/detectors/mvd/CbmMvdDetector.cxx: In member function 'TH1* CbmMvdDetector::GetHistogram(UInt_t, UInt_t, UInt_t)':
/home/cbmdock/cbmroot/core/detectors/mvd/CbmMvdDetector.cxx:398:42: warning: unused parameter 'nLevel' [-Wunused-parameter]
 TH1* CbmMvdDetector::GetHistogram(UInt_t nLevel, UInt_t nHistogramNumber, UInt_t sensorInSensorArrayNumber)
                                   ~~~~~~~^~~~~~
/home/cbmdock/cbmroot/core/detectors/mvd/CbmMvdDetector.cxx:398:57: warning: unused parameter 'nHistogramNumber' [-Wunused-parameter]
 TH1* CbmMvdDetector::GetHistogram(UInt_t nLevel, UInt_t nHistogramNumber, UInt_t sensorInSensorArrayNumber)
                                                  ~~~~~~~^~~~~~~~~~~~~~~~
/home/cbmdock/cbmroot/core/detectors/mvd/CbmMvdDetector.cxx:398:82: warning: unused parameter 'sensorInSensorArrayNumber' [-Wunused-parameter]
 TH1* CbmMvdDetector::GetHistogram(UInt_t nLevel, UInt_t nHistogramNumber, UInt_t sensorInSensorArrayNumber)
                                                                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

===

In file included from /home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.cxx:10:
/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.h: In constructor 'CbmMvdSensorDataSheet::CbmMvdSensorDataSheet()':
/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.h:65:43: warning: 'CbmMvdSensorDataSheet::fSignalFallTime' will be initialized after [-Wreorder]
   Double_t fSignalFallTime  = nan("NotSet");
                                           ^
/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.h:61:12: warning:   'Double_t CbmMvdSensorDataSheet::fShaperNormalisationFactor' [-Wreorder]
   Double_t fShaperNormalisationFactor;

/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.cxx:21:1: warning:   when initialized here [-Wreorder]
 CbmMvdSensorDataSheet::CbmMvdSensorDataSheet()
 ^~~~~~~~~~~~~~~~~~~~~

/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.cxx: In member function 'virtual Double_t CbmMvdSensorDataSheet::ComputeCCE(Float_t, Float_t, Float_t, Float_t, Float_t, Float_t)':
/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.cxx:104:96: warning: unused parameter 'chargePointZ' [-Wunused-parameter]
 Double_t CbmMvdSensorDataSheet::ComputeCCE(Float_t chargePointX, Float_t chargePointY, Float_t chargePointZ,
                                                                                        ~~~~~~~~^~~~~~~~~~~~
/home/cbmdock/cbmroot/core/detectors/mvd/SensorDataSheets/CbmMvdSensorDataSheet.cxx:105:84: warning: unused parameter 'diodeZ' [-Wunused-parameter]
                                            Float_t diodeX, Float_t diodeY, Float_t diodeZ)
                                                                            ~~~~~~~~^~~~~~

===

/home/cbmdock/cbmroot/sim/detectors/mvd/CbmMvdDigitizer.cxx: In member function 'void CbmMvdDigitizer::DisplayDebugHistos()':
/home/cbmdock/cbmroot/sim/detectors/mvd/CbmMvdDigitizer.cxx:429:12: warning: variable 'c' set but not used [-Wunused-but-set-variable]
   TCanvas* c  = 0;

===

[CTest: warning suppressed] /Users/fairroot/builds/computing/cbmroot/sim/detectors/mvd/CbmMvdDigitizer.cxx:443:41: warning: adding 'char' to a string does not append to the string [-Wstring-plus-int]
    TString myCanvasName = "DigiCanvas" + myChar;
[CTest: warning suppressed]                            ~~~~~~~~~~~~~^~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/sim/detectors/mvd/CbmMvdDigitizer.cxx:443:41: note: use array indexing to silence this warning
    TString myCanvasName = "DigiCanvas" + myChar;
[CTest: warning suppressed]                                         ^
                           &            [       ]
[CTest: warning suppressed] 1 warning generated.

        ^

===

[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/reco/detectors/mvd/plugins/tasks/CbmMvdSensorHitfinderTask.cxx:310:10: warning: variable 'shape' set but not used [-Wunused-but-set-variable]
  UInt_t shape  = 0;
[CTest: warning suppressed]          ^
[CTest: warning suppressed] 1 warning generated.

/home/cbmdock/cbmroot/reco/detectors/mvd/plugins/tasks/CbmMvdSensorHitfinderTask.cxx: In member function 'void CbmMvdSensorHitfinderTask::ComputeCenterOfGravity(CbmMvdCluster*, TVector3&, TVector3&, double&, double&, double&)':
/home/cbmdock/cbmroot/reco/detectors/mvd/plugins/tasks/CbmMvdSensorHitfinderTask.cxx:311:9: warning: variable 'xIndex0' set but not used [-Wunused-but-set-variable]
   Int_t xIndex0 = 0;
         ^~~~~~~
/home/cbmdock/cbmroot/reco/detectors/mvd/plugins/tasks/CbmMvdSensorHitfinderTask.cxx:312:9: warning: variable 'yIndex0' set but not used [-Wunused-but-set-variable]
   Int_t yIndex0 = 0;
         ^~~~~~~

added WarnFix label

requested review from @m.deveaux

assigned to @se.gorbunov

changed the description

changed the description

assigned to @f.uhlig and unassigned @se.gorbunov

added 2 commits

• 184d0d84 - 1 commit from branch computing:master
• 29b256de - warning fixes in Mvd

Compare with previous version

added 2 commits

• 63eb442b - 1 commit from branch computing:master
• f6ee4383 - warning fixes in Mvd

Compare with previous version

Dear @i.selyuzhenkov, @c.muentz, @m.deveaux,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

added 21 commits

• f6ee4383...f51dab55 - 20 commits from branch computing:master
• 3c3188af - warning fixes in Mvd

Compare with previous version

enabled an automatic merge when the pipeline for 3c3188af succeeds

I'll merge this MR as it was agreed with Michael.

merged