Include the date of record submission

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

readers/Reader.java

@@ -2,6 +2,7 @@ package readers;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.nio.file.Path;
+import java.time.ZonedDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -348,7 +349,7 @@ public abstract class Reader{
     public String toStringWithScreenshot() {
         return "{\"game\":\""+getClass().getSimpleName()+"\",\"difficulty\":" + difficulty + ", \"maxcombo\":" + maxcombo + ", \"notes\":" + Arrays.toString(notes)
                 + ", \"other\":" + other + ", \"pct\":" + pct + ", \"rank\":" + rank + ", \"score\":" + score + ", \"title\":\"" + title.replaceAll(Pattern.quote("\n"),"\\\\n")
-                + "\", \"screenshot\":\""+result_screenshot+"\"}";
+                + "\", \"screenshot\":\""+result_screenshot+"\", \"date\":"+ZonedDateTime.now().toEpochSecond()+"}";
     }
     public int getScore() {
         return score;