the final rename

src/util/timeutil.cpp

@@ -1,4 +1,4 @@
-#include "timeutil.h"
+#include "timeutil.hpp"
 
 #include <iostream>
 
@@ -26,4 +26,4 @@ void timeutil::from_value(float value, int& hour, int& minute, int& second) {
     minute = int(value) % 60;
     value *= 60;
     second = int(value) % 60;
-}
+}