Allow user to configure voronoi area decoration name

Reconstruction/Jet/JetMomentTools/JetMomentTools/JetVoronoiMomentsTool.h

@@ -49,6 +49,7 @@ private:
   float m_y_max;
 
   std::string m_jetContainerName;
+  std::string m_decorationName;
   SG::WriteDecorHandleKey<xAOD::JetContainer> m_voronoiAreaKey;
 
 };

Reconstruction/Jet/JetMomentTools/src/JetVoronoiMomentsTool.cxx

@@ -32,8 +32,9 @@ JetVoronoiMomentsTool::JetVoronoiMomentsTool(const std::string& name)
     declareProperty("AreaYmin",m_y_min);
     declareProperty("AreaYmax",m_y_max);
     declareProperty("JetContainer", m_jetContainerName);
+    declareProperty("DecorationName", m_decorationName = "VoronoiArea");
 
-    m_voronoiAreaKey = m_jetContainerName + ".VoronoiArea";
+    m_voronoiAreaKey = m_jetContainerName + "." + m_decorationName;
 }
 
 StatusCode JetVoronoiMomentsTool::initialize() {