time: add microsecond precision to Time struct

vlib/time/unix.v

@@ -24,6 +24,29 @@ pub fn unix(abs int) Time {
 	}
 }
 
+// unix2 returns a time struct from Unix time and microsecond value
+pub fn unix2(abs int, microsecond int) Time {
+	// Split into day and time
+	mut day_offset := abs / seconds_per_day
+	if abs % seconds_per_day < 0 {
+		// Compensate for round towards zero on integers as we want floored instead
+		day_offset--
+	}
+	year,month,day := calculate_date_from_offset(day_offset)
+	hr,min,sec := calculate_time_from_offset(abs % seconds_per_day)
+	return Time{
+		year: year
+		month: month
+		day: day
+		hour: hr
+		minute: min
+		second: sec
+		microsecond: microsecond
+		unix: u64(abs)
+	}
+}
+
+
 [inline]
 fn calculate_date_from_offset(day_offset_ int) (int,int,int) {
 	mut day_offset := day_offset_