Add Trd2d for event building

The MR is aimed at fixing a problem appeared for the Trd2d with the advent of mCBM 2021 data taking but affecting the whole TRD group on the longer run; namely the accommodation of 2 pad-plane pick-up electrode topologies (rectangular and triangular) operated by 2 types of FEEs (SPADIC and FASP). Since this is a particularity of only the TRD system the modifications are somehow wider affecting tangentially also parts of the general steering code.

Basically the MR aims at the following :

• Extend functionality of BuildRawEvents (Algo/Task) to incorporate also data from Trd2d
• Add data descriptors for Trd2d in the CbmDefs
• add a proposal for a steering script for event building for mcbm 2021

core/data/trd/CbmTrdCluster.cxx

@@ -120,7 +120,7 @@ void CbmTrdCluster::ReInit(int32_t address, int32_t row, int32_t time)
   SetNRows(row);
   SetProfileStart(0);
   SetProfileStop(0);
-  if (std::abs(time) >= 0xffffffff) LOG(warn) << GetName() << "::ReInit: buffer time truncated to 4bytes.";
+  if (std::abs(time) >= 0x7fffffff) LOG(warn) << GetName() << "::ReInit: buffer time truncated to 4bytes.";
   fStartTime = time;
 }
 
@@ -142,9 +142,9 @@ bool CbmTrdCluster::Merge(CbmTrdCluster* second, bool typ)
   if (GetRow() != second->GetRow()) return false;
   // time difference condition
   if (fNCols == 1 || second->fNCols == 1) {
-    if (abs(second->fStartTime - fStartTime) > 50) return false;
+    if (abs(int32_t(second->fStartTime - fStartTime)) > 50) return false;
   }
-  else if (abs(second->fStartTime - fStartTime) > 20)
+  else if (abs(int32_t(second->fStartTime - fStartTime)) > 20)
     return false;
   // look before current
   if (second->fStartCh + second->fNCols == fStartCh && !second->HasOpenStop() && !HasOpenStart()) {