add new converter: days to years

src/convert_time.c

@@ -28,4 +28,9 @@ double converter_hour_in_sec(double hour){
 double converter_sec_in_hour(double sec){
     double time = sec / 60 / 60;
     return time;
+}
+
+double converter_days_to_years(double days){
+    double time = days / 365;
+    return time;
 }

src/convert_time.h

@@ -7,6 +7,6 @@ double converter_hour_to_min(double hour);
 double converter_min_to_hour(double min);
 double converter_hour_in_sec(double hour);
 double converter_sec_in_hour(double sec);
-
+double converter_days_to_years(double days);
 
 #endif //THEADMIRALS_CONVERT_TIME_H