RICH Support for 'Reco From MC Information' for upgrade studies

Currently based off !4166 (merged) which should be merged before this.

Goes together with Rec!3486 (merged) Lbcom!675 (merged)

Event/MCEvent/include/Event/MCRichHit.h

@@ -39,7 +39,7 @@ namespace LHCb {
 
   /** @class MCRichHit MCRichHit.h
    *
-   * MC Rich HPD detector hit
+   * MC Rich PD detector hit
    *
    * @author Chris Jones    Christopher.Rob.Jones@cern.ch
    *
@@ -126,11 +126,11 @@ namespace LHCb {
     /// Update  Time of flight (ns)
     void setTimeOfFlight( double value );
 
-    /// Retrieve const  Sensitive detector ID number. Uniquely identifies the hit HPD pixel using the RichSmartID
+    /// Retrieve const  Sensitive detector ID number. Uniquely identifies the hit PD pixel using the RichSmartID
     /// channel encoding
     const LHCb::RichSmartID& sensDetID() const;
 
-    /// Update  Sensitive detector ID number. Uniquely identifies the hit HPD pixel using the RichSmartID channel
+    /// Update  Sensitive detector ID number. Uniquely identifies the hit PD pixel using the RichSmartID channel
     /// encoding
     void setSensDetID( const LHCb::RichSmartID& value );
 
@@ -154,10 +154,10 @@ namespace LHCb {
     /// Update Did the photon undergo Rayleigh scattering
     void setScatteredPhoton( bool value );
 
-    /// Retrieve Hit from a charged track hitting the HPD entrance window
+    /// Retrieve Hit from a charged track hitting the PD entrance window
     bool chargedTrack() const;
 
-    /// Update Hit from a charged track hitting the HPD entrance window
+    /// Update Hit from a charged track hitting the PD entrance window
     void setChargedTrack( bool value );
 
     /// Retrieve Hit from an electron backscattered at the HPD silicon chip