message: Add trigger for 2018 PbPb analysis
diff: @@ -91,6 +91,7 @@ AliRsnMiniAnalysisTask* AddtaskXi1820_test(
  else if(trigger==1) task->UseESDTriggerMask(AliVEvent::kHighMultV0);
  else if(trigger==2) task->UseESDTriggerMask(AliVEvent::kCentral);//PbPb
  else if(trigger==3) task->UseESDTriggerMask(AliVEvent::kSemiCentral);//PbPb
  + else if(trigger==4) task->UseESDTriggerMask(AliVEvent::kINT7|AliVEvent::kCentral|AliVEvent::kSemiCentral);//PbPb
  // multiplicity
  bool isPP=false;
  @@ -110,7 +111,7 @@ AliRsnMiniAnalysisTask* AddtaskXi1820_test(
  int nmix=5;
  if((EventCuts%10000)/1000==1) nmix=0;
  float maxDiffVzMix=1;
  - float maxDiffMultMix=10;
  + float maxDiffMultMix=5;
  task->UseContinuousMix();
  task->SetNMix(nmix);
  task->SetMaxDiffVz(maxDiffVzMix);
  @@ -176,7 +177,7 @@ AliRsnMiniAnalysisTask* AddtaskXi1820_test(
  int j,nmult=0;
  if(!MultBins){
  for(j=0;j<=401;j++){multbins[nmult]=j-0.5; nmult++;}
  - }else if((!trigger) || (trigger==2) || (trigger==3)){//!trigger
  + }else if((!trigger) || (trigger==2) || (trigger==3) ||(trigger==4)){//!trigger
  for(j=0;j<=100;j++){multbins[nmult]=j; nmult++;}
  }else{
  for(j=0;j<10;j++){multbins[nmult]=0.0001*j; nmult++;}
  @@ -448,7 +449,7 @@ Bool_t Config_Lambdakx(AliRsnMiniAnalysisTask* task,
  if(!MultBins){
  multbins[nmult]=0.; nmult++;
  multbins[nmult]=1.e6; nmult++;
  - }else if((!trigger) || (trigger==2) || (trigger==3)){
  + }else if((!trigger) || (trigger==2) || (trigger==3)|| (trigger==4)){
  multbins[nmult]=0.; nmult++;
  multbins[nmult]=1.; nmult++;
  multbins[nmult]=5.; nmult++;
  @@ -975,7 +976,7 @@ Bool_t Config_Lambdak0(AliRsnMiniAnalysisTask* task,
  if(!MultBins){
  multbins[nmult]=0.; nmult++;
  multbins[nmult]=1.e6; nmult++;
  - }else if((!trigger) || (trigger==2) || (trigger==3)){
  + }else if((!trigger) || (trigger==2) || (trigger==3)|| (trigger==4)){
  multbins[nmult]=0.; nmult++;
  multbins[nmult]=1.; nmult++;
  multbins[nmult]=5.; nmult++;
  