* Add comment symbol (%) support when reading input file in NPA

   - changes made in RootInput.cxx file

NPAnalysis/Gaspard/RunToTreat.txt

 TTreeName 
 	SimulatedTree
 RootFileName 
+	../../Outputs/Simulation/mySimul_test.root
+%	../../Outputs/Simulation/mySimul.root
 	../../Outputs/Simulation/mySimul.root

NPLib/IORoot/RootInput.cxx

@@ -89,7 +89,12 @@ RootInput::RootInput(string configFileName)
             while (!inputConfigFile.eof()) {
                inputConfigFile >> dataBuffer;
 
-               if (!inputConfigFile.eof()) {
+               // ignore comment Line 
+               if (dataBuffer.compare(0, 1, "%") == 0) {
+                  inputConfigFile.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
+               }
+
+               else if (!inputConfigFile.eof()) {
                   pRootChain->Add(dataBuffer.c_str());
                   cout << "Adding file " << dataBuffer << " to TChain" << endl;
                }