Add new ClientSettings API

Add the new API introducted with the ClientSettings packet changes in 1.18

api/src/main/java/com/velocitypowered/api/proxy/player/PlayerSettings.java

@@ -57,6 +57,16 @@ public interface PlayerSettings {
    */
   MainHand getMainHand();
 
+  /**
+   * Returns whether the client explicitly allows listing on the
+   * {@link com.velocitypowered.api.proxy.player.TabList} or not in
+   * anonymous TabList mode.
+   * This feature was introduced in 1.18.
+   *
+   * @return whether or not the client explicitly allows listing. Always false on older clients.
+   */
+  boolean isClientListingAllowed();
+
   enum ChatMode {
     SHOWN,
     COMMANDS_ONLY,

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientSettingsWrapper.java

@@ -74,5 +74,9 @@ public class ClientSettingsWrapper implements PlayerSettings {
     return settings.getMainHand() == 1 ? MainHand.RIGHT : MainHand.LEFT;
   }
 
+  @Override
+  public boolean isClientListingAllowed() {
+    return settings.isClientListingAllowed();
+  }
 
 }