Online-QA module for STS raw digis

The module is represented with the class cbm::algo::sts::DigiQa (file StsDigiQa.h). On this iteration the following distributions are added: digi vs. channel vs. address, digi vs. charge vs. address, and digi vs. channel vs. charge vs. address.

Modification to histogram server:

• bugfix: the histogram server does not crash any more, if the canvas has more pads, then the corresponding canvas config
• possibility to save canvases into subdirectories was added

NOTE: this merge request should be merged after the !1689 (merged)

algo/global/Reco.cxx

@@ -8,6 +8,7 @@
 #include "EventbuildChain.h"
 #include "Exceptions.h"
 #include "HistogramSender.h"
+#include "StsDigiQa.h"
 #include "bmon/Unpack.h"
 #include "ca/TrackingChain.h"
 #include "compat/OpenMP.h"
@@ -115,6 +116,11 @@ void Reco::Init(const Options& opts)
     auto walkMap = yaml::ReadFromFile<sts::WalkMap>(Opts().ParamsDir() / "StsWalkMap.yaml");
     sts::Unpack::Config cfg{.readout = readout, .walkMap = walkMap};
     fStsUnpack = std::make_unique<sts::Unpack>(cfg);
+    if (fSender != nullptr) {
+      fStsDigiQa = std::make_unique<sts::DigiQa>(fSender);
+      fStsDigiQa->RegisterReadoutSetup(readoutSetup);
+      fStsDigiQa->Init();
+    }
   }
 
   if (Opts().Has(Subsystem::TOF) && Opts().Has(Step::Unpack)) {
@@ -214,6 +220,12 @@ RecoResults Reco::Run(const fles::Timeslice& ts)
       QueueEvbuildMetrics(evbuildMonitor);
     }
 
+    // --- Raw digi QAs
+    if (fSender != nullptr && Opts().Has(Subsystem::STS) && Opts().Has(Step::Unpack)) {
+      fStsDigiQa->RegisterDigiData(&digis.fSts);
+      fStsDigiQa->Exec();
+    }
+
     sts::HitfinderMonitor stsHitfinderMonitor;
     PartitionedSpan<sts::Hit> stsHits;
     PartitionedVector<sts::Cluster> stsClusters;