Adds a secondary copy method

lib/utils/TimeUtils.dart

@@ -75,6 +75,10 @@ class Time {
     this.seconds = seconds;
   }
 
+  Time copy() {
+    return Time(hours: hours, minutes: minutes, seconds: seconds);
+  }
+
   factory Time.copy(Time other) {
     return Time(
         hours: other.hours, minutes: other.minutes, seconds: other.seconds);