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

macro/beamtime/mcbm2021/mcbm_event_reco.C

@@ -10,14 +10,14 @@
 // --------------------------------------------------------------------------
 
 /// FIXME: Disable clang formatting to keep easy parameters overview
-/* clang-format off */
+// clang-format off
 Bool_t mcbm_event_reco(
 //  UInt_t uRunId        = 1588, Int_t nTimeslices    = -1, TString sInpDir      = "unp", TString sOutDir      = "rec", Int_t iUnpFileIndex  = -1
 TString fileName, UInt_t uRunId = 0, Int_t nTimeslices    = -1, TString sOutDir = "."
        , Int_t iRef  = 3)
 {
   /// FIXME: Re-enable clang formatting after parameters initial values setting
-  /* clang-format on */
+  // clang-format off
 
   // --- Logger settings ----------------------------------------------------
   TString logLevel     = "INFO";