Fix compilation if HDF5 is not activated

src/utils/checkpointing/PrintScriptFrom.cpp

 #include <utils/checkpointing/PrintScriptFrom.hpp>
 
+#include <rang.hpp>
 #include <utils/pugs_config.hpp>
 
+#include <iostream>
+
 #ifdef PUGS_HAS_HDF5
 
-#include <optional>
-#include <rang.hpp>
 #include <utils/Exceptions.hpp>
 #include <utils/HighFivePugsUtils.hpp>
 

src/utils/checkpointing/SetResumeFrom.cpp

 #include <utils/checkpointing/SetResumeFrom.hpp>
 
+#include <rang.hpp>
 #include <utils/pugs_config.hpp>
 
+#include <iostream>
+
 #ifdef PUGS_HAS_HDF5
 
-#include <optional>
-#include <rang.hpp>
 #include <utils/Exceptions.hpp>
 #include <utils/HighFivePugsUtils.hpp>