add new converter: min to hour

src/convert_time.c

@@ -15,3 +15,7 @@ double converter_hour_to_min(double hour){
     return time;
 }
 
+double converter_min_to_hour(double min){
+    double time = min / 60;
+    return time;
+}

src/convert_time.h

@@ -4,5 +4,6 @@
 double converter_sec_to_min(double sec);
 double converter_min_to_sec(double min);
 double converter_hour_to_min(double hour);
+double converter_min_to_hour(double min);
 
 #endif //THEADMIRALS_CONVERT_TIME_H