add new converter: hour to sec

src/convert_time.c

@@ -19,3 +19,8 @@ double converter_min_to_hour(double min){
     double time = min / 60;
     return time;
 }
+
+double converter_hour_in_sec(double hour){
+    double time = hour * 60 * 60;
+    return time;
+}

src/convert_time.h

@@ -5,5 +5,6 @@ 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);
+double converter_hour_in_sec(double hour);
 
 #endif //THEADMIRALS_CONVERT_TIME_H