Draft: Update cluster resolutions and add pseudoSize information

Following the discussion in https://indico.cern.ch/event/874111/, we decided to:

• change the "new" cluster resolutions to the RMS of the distribution
• report the pseudoSize in the PrHit and PrScifiHit classes

Still to discuss:

• how to report the full resolution model to the track fit?

The full resolution model (without angular dependencies) would be reported by 6 variables, nearly doubling the size of the PrHit class. Alternatively, we propose in this MR to only propagate the pseudoSize information, and then to provide a helper class (or anything that would do it) which uses this information to deliver the most precise resolution model.

Presented and approved in https://indico.cern.ch/event/943209/

Pr/PrAlgorithms/src/PrHybridSeeding.h

@@ -371,13 +371,14 @@ private:
   Gaudi::Property<float> m_ConstC{this, "CConst", 2.458e8}; // Const value to compute the backward projection
 
   //----------- Fit X/Z projection tolerances
-  Gaudi::Property<std::vector<float>> m_maxChi2HitsX{this, "maxChi2HitsX", {5.5, 5.5, 5.5}};
-  Gaudi::Property<std::vector<float>> m_maxChi2DoFX{this, "maxChi2DoFX", {4.0, 5.0, 6.0}};
+  Gaudi::Property<std::vector<float>> m_maxChi2HitsX{this, "maxChi2HitsX", {4.95, 4.95, 4.95}};
+  Gaudi::Property<std::vector<float>> m_maxChi2DoFX{this, "maxChi2DoFX", {3.6, 4.5, 5.4}};
 
   //----------- Full fit tolerances in standard cases and in recover case (index = 3)
-  Gaudi::Property<std::vector<float>> m_minChi2HitFullRemove{this, "MinChi2HitFullRemove", {6., 10., 12., 10.}};
-  Gaudi::Property<std::vector<float>> m_minChi2PerDofFullRemove{this, "MinChi2PerDofFullRemove", {1.75, 2., 1.5, 5.}};
-  Gaudi::Property<std::vector<float>> m_maxChi2PerDofFullLow{this, "MaxChi2PerDofFullLow", {1.75, 1.4, 1.25, 3.5}};
+  Gaudi::Property<std::vector<float>> m_minChi2HitFullRemove{this, "MinChi2HitFullRemove", {5.4, 9., 10.8, 9.}};
+  Gaudi::Property<std::vector<float>> m_minChi2PerDofFullRemove{
+      this, "MinChi2PerDofFullRemove", {1.58, 1.8, 1.35, 4.5}};
+  Gaudi::Property<std::vector<float>> m_maxChi2PerDofFullLow{this, "MaxChi2PerDofFullLow", {1.58, 1.26, 1.13, 3.15}};
   Gaudi::Property<std::vector<float>> m_maxChi2PerDofFullHigh{
       this, "MaxChi2PerDofFullHigh", {9999999., 9999999., 9999999., 9999999.}};
   Gaudi::Property<std::vector<float>> m_maxYAt0Low{this, "MaxYAt0Low", {9999999., 9999999., 120., 9999999.}};