Fix/Changes:
- Improved World generation
- Changed Spawn calculation and looking for safe Location
- Make world only available for Player, after the server is also ready
- Remove Paper-Plugin explicit Support for now, to support older MC Versions
- Homes didn't get correctly deleted and error, if no Home System was used
- Fixed Void World Spawn (Wrong since v1.5.0)
- Biome Worlds weren't correctly generating (since v1.5.0)
- CustomWorld directory wasn't correctly copied
- Fallback Group to default, if the primary Permission group wasn't found for the player (max possibile worlds setting)
- Limit WorldBorder through the config and permissions. (riw.worldborder.300 count as 300 more, to the default in the config)
- Add message if World got queued, but not generating yet
- Fix placeholders for message "notEnoughMoney" after buying a gadget

New Placeholder:
- riw_world_maxplayers
- riw_world_is_member
- riw_world_is_auto_payment
- riw_world_is_paused_since
- riw_world_last_player_date
- riw_world_next_payday_date
- riw_world_paused_since_date
- riw_world_create_date
- riw_world_is_gadget_active_%gadget%