add canJoinFull method

api/src/main/java/us/ajg0702/queue/api/commands/ICommandSender.java

@@ -3,6 +3,7 @@ package us.ajg0702.queue.api.commands;
 import net.kyori.adventure.audience.Audience;
 import us.ajg0702.queue.api.util.Handle;
 
+@SuppressWarnings("BooleanMethodIsAlwaysInverted")
 public interface ICommandSender extends Handle, Audience {
     boolean hasPermission(String permission);
     boolean isPlayer();

api/src/main/java/us/ajg0702/queue/api/queues/QueueServer.java

@@ -13,7 +13,7 @@ import java.util.UUID;
 /**
  * Represents a server or a group that can be queued for
  */
-@SuppressWarnings("unused")
+@SuppressWarnings({"unused", "BooleanMethodIsAlwaysInverted"})
 public interface QueueServer {
 
     /**
@@ -232,6 +232,13 @@ public interface QueueServer {
      */
     void setSupportedProtocols(List<Integer> list);
 
+    /**
+     * Checks if the player can join this server even if its full
+     * @param player The player
+     * @return If the player can join this server if its full
+     */
+    boolean canJoinFull(AdaptedPlayer player);
+
 
     /**
      * elliot is bad