Merge branch 'nuvallsc_CaloClusterEfficiency' into 'master'

Add new MC2DigitTable

See merge request !3245

CaloFuture/CaloFutureUtils/include/CaloFutureUtils/CaloFuture2MC.h

@@ -47,6 +47,9 @@ namespace LHCb::CaloFuture2MC {
   using IDigitTable = IRelationWeighted<LHCb::CaloCellID, LHCb::MCParticle, float>;
   using DigitTable  = RelationWeighted1D<LHCb::CaloCellID, LHCb::MCParticle, float>;
 
+  using IMC2DigitTable = IRelationWeighted<LHCb::MCParticle, LHCb::CaloCellID, float>;
+  using MC2DigitTable  = RelationWeighted1D<LHCb::MCParticle, LHCb::CaloCellID, float>;
+
   using IHypoTable = IRelationWeighted<LHCb::CaloCellID, LHCb::MCParticle, float>;
   using HypoTable  = RelationWeighted1D<LHCb::CaloCellID, LHCb::MCParticle, float>;