Cleaned up CbmMuchTransportQa. Added CbmMuchDigitizerQa.

Changes were made to reco/detectors/much/CMakeLists.txt and sim/detectors/much/CMakeLists.txt to make compilation of the new code possible.

macro/run/run_qa.C

@@ -157,6 +157,7 @@ void run_qa(Int_t nEvents   = 0,
 
   if (CbmSetup::Instance()->IsActive(ECbmModuleId::kMuch)) {
     run->AddTask(new CbmMuchTransportQa());
+    run->AddTask(new CbmMuchDigitizerQa());
   }
 
   // ------------------------------------------------------------------------