Test for Reduce Mean Operator added

Author: Neel-Shah-29

tmva/sofie/CMakeLists.txt

@@ -33,6 +33,7 @@ ROOT_STANDARD_LIBRARY_PACKAGE(ROOTTMVASofie
    TMVA/ROperator_Concat.hxx
    TMVA/ROperator_Identity.hxx
    TMVA/ROperator_Softmax.hxx
+   TMVA/ROperator_Reduce.hxx
    TMVA/SOFIE_common.hxx
    TMVA/SOFIEHelpers.hxx
   SOURCES

tmva/sofie/inc/TMVA/OperatorList.hxx

@@ -18,3 +18,4 @@
 #include "TMVA/ROperator_Identity.hxx"
 #include "TMVA/ROperator_Softmax.hxx"
 #include "TMVA/ROperator_Concat.hxx"
+#include "TMVA/ROperator_Reduce.hxx"

tmva/sofie/test/TestCustomModelsFromONNX.cxx

@@ -27,7 +27,6 @@
 #include "Div_FromONNX.hxx"
 #include "input_models/references/Div.ref.hxx"
 
-
 #include "Neg_FromONNX.hxx"
 #include "input_models/references/Neg.ref.hxx"