Update the XDJ-XZ firmware with the possibility to drum Hot-Cues in Standalone mode

It's a shame that when attached to the Rekordbox - it's possible to drum the hotcues without auto playing, but not the same in standalone.

That's quite a shame, as well as the missing possibility to use the deck 3 and 4 in standalone mode with 4 channels being there.

It should at least be added now, as it wasn't added by the time of release.