det(must): Add first version of the MUST detector

First version of the MUST detector. Includes simulation and simplified digitization and hit finding.

core/data/must/CbmMustDigi.cxx

+/* Copyright (C) 2025 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+   SPDX-License-Identifier: GPL-3.0-only
+   Authors: Radosław Karabowicz [committer] */
+
+// -------------------------------------------------------------------------
+// -----                      CbmMustDigi header file                  -----
+// -----                  Created 2025-01-26 by R. Karabowicz          -----
+// -------------------------------------------------------------------------
+
+#include "CbmMustDigi.h"
+
+#include "CbmDefs.h"
+#include "TMath.h"
+
+#include <iostream>
+
+/** Default constructor **/
+CbmMustDigi::CbmMustDigi() : TObject()
+{
+  // ClearDigi();
+}
+
+CbmMustDigi::CbmMustDigi(Int_t detectorId, Int_t skew, Double_t signalTime, Double_t signalError, Double_t chargeDep)
+  : TObject()
+  , fDetectorId(detectorId)
+  , fSkewed(skew)
+  , fSignalTime(signalTime)
+  , fSignalError(signalError)
+  , fDepCharge(chargeDep)
+{
+}
+
+/** Public method ClearDigi **/
+void CbmMustDigi::ClearDigi()
+{
+  fDetectorId  = 0;
+  fSkewed      = 0;
+  fSignalTime  = 0.;
+  fSignalError = 0.;
+  fDepCharge   = 0.;
+}
+
+/** Destructor **/
+CbmMustDigi::~CbmMustDigi() {}
+
+ClassImp(CbmMustDigi)