Add TF3 and TFile includes to flowDecorrelation.cxx

Author: lcernusa

PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx

@@ -53,6 +53,8 @@
 #include <Framework/HistogramSpec.h>
 #include <Framework/InitContext.h>
 
+#include <TF3.h>
+#include <TFile.h>
 #include "TF1.h"
 #include "TRandom3.h"
 #include <TPDGCode.h>