Making the headers self-sufficient

Author: alibuild

PWGCF/FemtoUniverse/Core/FemtoUniverseEventHisto.h

@@ -18,6 +18,7 @@
 #define PWGCF_FEMTOUNIVERSE_CORE_FEMTOUNIVERSEEVENTHISTO_H_
 
 #include "PWGCF/FemtoUniverse/DataModel/FemtoDerived.h"
+
 #include "Framework/HistogramRegistry.h"
 
 using namespace o2::framework;