Add minestom platform support

[TheMeinerLP]

Description

This pr adds basic minestom support into luckperms.

Developers on minestom side need following to code changes:

public class CustomPlayer extends Player implements PermissionChecker {

    private final @NotNull Pointers pointers = CustomPlayer.super.pointers().toBuilder().withDynamic(PermissionChecker.POINTER, this::getPermissionChecker).build();

    private @NotNull PermissionChecker getPermissionChecker() {
        return this;
    }

    public CustomPlayer(PlayerConnection playerConnection, GameProfile gameProfile) {
        super(playerConnection, gameProfile);
    }

    @Override
    public Pointers pointers() {
        return super.pointers();
    }


    @Override
    public @NotNull TriState value(@NotNull String permission) {
        QueryOptions queryOptions = LuckPermsProvider.get().getContextManager().getQueryOptions(this);
        User user = LuckPermsProvider.get().getUserManager().getUser(this.getUuid());
        return CompatibilityUtil.convertTriState(user.getCachedData().getPermissionData(queryOptions).checkPermission(permission));
    }
}

final class CompatibilityUtil {
    private CompatibilityUtil() {
    }

    static TriState convertTriState(Tristate tristate) {
        return switch (tristate) {
            case TRUE -> TriState.TRUE;
            case FALSE -> TriState.FALSE;
            case UNDEFINED -> TriState.NOT_SET;
        };
    }
}

Yeah its right, CompatibilityUtil lays on package level for package private access.

With MinecraftServer.getConnectionManager().setPlayerProvider(CustomPlayer::new); you can register your custom player class.

There is still one thing to do, the implementation needs be published to maven central or similar, so minestom users can shade the implementation into there big fat jar deployment.
Why ? Because minestom decided long time ago to remove permission interface from there and also the plugin alternative: extensions.

Todo

• Add basic implementation
• Publish to maven central
• Test with real minestom server
• Add documentation to wiki

Note

This pr remains in draft state until the implementation is published to maven central or similar.