Dynamic worlds

[TureBentzin]

This pull request ist about this conversation: https://discord.com/channels/411229508838883329/548534592533954589/1150782258014339154

It added two things to DeluxeHub

Automatic world loading

This feature populates the "disabledWorlds" if a new world is loaded. It respects the configuration about whitelist / blacklist

Methods:

public void loadWorlds() {
        FileConfiguration config = plugin.getConfigManager().getFile(ConfigType.SETTINGS).getConfig();
        if (config.getBoolean("disabled-worlds.invert")) {
            disabledWorlds = Bukkit.getWorlds().stream().map(World::getName).collect(Collectors.toList());
            for (String world : config.getStringList("disabled-worlds.worlds")) disabledWorlds.remove(world);
        }else {
            disabledWorlds = config.getStringList("disabled-worlds.worlds");
        }

    }

    /**
     * @param world name of a world
     */
    public boolean disableWorld(String world) {
        if(Bukkit.getWorld(world) != null)
            return disabledWorlds.add(world);
        throw new IllegalArgumentException("cant find world: " + world);
    }

    public void registerNewWorld(String world) {
        if(Bukkit.getWorld(world) != null)
        {
            FileConfiguration config = plugin.getConfigManager().getFile(ConfigType.SETTINGS).getConfig();
            if (config.getBoolean("disabled-worlds.invert")) { //whitelist
                if (config.getStringList("disabled-worlds.worlds").contains(world)) {
                    //allow
                    disabledWorlds.remove(world); // just in case
                    plugin.getLogger().info("Loaded new world: " + world + "! The world was added to the whitelist!");
                }else {
                    disableWorld(world);
                    plugin.getLogger().info("Loaded new world: " + world + "! The world is not on the whitelist and was marked as disabled!");
                }
            }else {
                if (config.getStringList("disabled-worlds.worlds").contains(world)) {
                    //deny
                    disableWorld(world);
                    plugin.getLogger().info("Loaded new world: " + world + "! The world is on the blacklist and was marked as disabled!");
                }else {
                    disabledWorlds.remove(world); //just in case
                    plugin.getLogger().info("Loaded new world: " + world + "! The world is not on the blacklist and was marked as enabled!");
                }
            }
            return;

        }
        throw new IllegalArgumentException("cant find world: " + world);
    }
    ```
    
### Needs attention
I used a new Listener to listen for WorldLoadEvents (fun/lewisdev/deluxehub/module/modules/world/WorldLoadListener.java). That listener is only active if the config flag for automatic world loading is set to true (by default it is false). I put in in the "GENERAL SETTINGS" section, because I think it fits there best.
```yaml
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
# | GENERAL SETTINGS                         |
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#

# Check for latest SpigotMC updates (recommended).
check-updates: true

# Disable specific worlds
disabled-worlds:
  # Should we invert the list making it a whitelist rather than a blacklist?
  invert: false
  # List your disabled worlds HERE or "worlds: []" to disable
  worlds:
    - world_nether

# Automatically load new worlds
automatic-world-loading: false

I don't know what your policy for the developers tag in the pom.xml is.

This PR also bumps the version to *.5.5 because its only a minor change.

If you think I should have done this in a different way, because it violates your code style. Please let me know

Further testing is still needed, that is why it is a draft