Safety code in case the database folder does not exist. (#8)

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

ArcadeReader.java

@@ -745,6 +745,7 @@ public class ArcadeReader {
                         for (String song : sigPlace.SONG_DATABASE.get(reader).keySet()) {
                             List<String> data = sigPlace.SONG_DATABASE.get(reader).get(song);
                             try {
+                                Files.createDirectories(Paths.get("database",reader));
                                 Files.write(Paths.get("database",reader,song), data, Charset.defaultCharset(), StandardOpenOption.CREATE,StandardOpenOption.TRUNCATE_EXISTING,StandardOpenOption.WRITE);
                             } catch (IOException e) {
                                 e.printStackTrace();