BungeeCord Support

* Provides support for IP forwarding via BungeeCord.
* Treats Bungee as Online Mode.

By: md_5 <git@md-5.net>

paper-server/patches/sources/net/minecraft/network/protocol/handshake/ClientIntentionPacket.java.patch

@@ -5,3 +5,13 @@
  package net.minecraft.network.protocol.handshake;
  
  import net.minecraft.network.FriendlyByteBuf;
+@@ -11,7 +12,8 @@
+     private static final int MAX_HOST_LENGTH = 255;
+ 
+     private ClientIntentionPacket(FriendlyByteBuf buf) {
+-        this(buf.readVarInt(), buf.readUtf(255), buf.readUnsignedShort(), ClientIntent.byId(buf.readVarInt()));
++        // Spigot - increase max hostName length
++        this(buf.readVarInt(), buf.readUtf(Short.MAX_VALUE), buf.readUnsignedShort(), ClientIntent.byId(buf.readVarInt()));
+     }
+ 
+     private void write(FriendlyByteBuf buf) {