1. Can add multiple worlds in RTPZone.
2. Made the RTPZone add the world in chunk generator.
1. RTPQueue /leave command made it so you can leave with /leave or /rtpqueue leave.
2. Added a message in the chat or bossbar or actionbar to see the coordinates of the RTP position of the player after /rtp.
3. Added /1v1 (or /duel) command, so you can play vs a player on a rtp map like this /1v1 <player>
4. Added a glow effect after RTP to see the player better.
5. Added a toggle for the /1v1 or /duel command (toggle receiving requests)
