change to kebab-case in cmake and reformatting preamble in cxx

Author: Yuanjun Mei

PWGCF/MultiparticleCorrelations/Tasks/CMakeLists.txt

@@ -17,7 +17,7 @@ o2physics_add_dpl_workflow(multiparticle-correlations-ab
 o2physics_add_dpl_workflow(multiparticle-correlations-ar
                     SOURCES multiparticle-correlations-ar.cxx
                     PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore O2Physics::PWGCFCore
-                    COMPONENT_NAME Analysis)
+                    COMPONENT_NAME Analysis) // o2-linter: disable=name/o2-workflow (this is not my task, I cannot change this)
 
 o2physics_add_dpl_workflow(three-particle-correlations
                     SOURCES threeParticleCorrelations.cxx

PWGCF/MultiparticleCorrelations/Tasks/multiparticleCorrelationsMei.cxx

@@ -20,11 +20,6 @@
 
 #include <CCDB/BasicCCDBManager.h>
 #include <Framework/AnalysisDataModel.h>
-#include <Framework/AnalysisTask.h>
-#include <Framework/DataTypes.h>
-
-using namespace std;
-// ...
 #include <Framework/runDataProcessing.h>
 
 #include <TGrid.h>
@@ -33,12 +28,10 @@ using namespace std;
 
 #include <string>
 #include <vector>
-// ...
 
 using namespace o2;
 using namespace o2::framework;
 using namespace o2::constants;
-// ...
 
 // Definitions of join tables for Run 3 analysis:
 using EventSelection = soa::Join<aod::EvSels, aod::Mults, aod::CentFT0Cs, aod::CentFT0Ms, aod::CentFV0As, aod::CentNTPVs>;
@@ -51,10 +44,6 @@ using TracksRecSim = soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, ao
 using TrackRecSim = soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, aod::TrackSelection, aod::McTrackLabels>::iterator;
 using TracksSim = aod::McParticles;
 using TrackSim = aod::McParticles::iterator;
-// ...
-
-using namespace std;
-// ...
 
 // *) Define enums:
 enum ECentralityEstimator {