Implemented custom player overlays.

src/main/java/noppes/npcs/client/Client.java

@@ -6,6 +6,7 @@ import io.netty.buffer.Unpooled;
 import java.io.IOException;
 import java.util.HashMap;
 
+import net.minecraft.util.ResourceLocation;
 import noppes.npcs.CustomNpcs;
 import noppes.npcs.Server;
 import noppes.npcs.client.gui.customoverlay.OverlayCustom;
@@ -14,6 +15,7 @@ import cpw.mods.fml.common.network.internal.FMLProxyPacket;
 
 public class Client {
 	public static HashMap<Integer, OverlayCustom> customOverlays = new HashMap<>();
+	public static ResourceLocation playerOverlay = null;
 
 	public static void sendData(EnumPacketServer enu, Object... obs) {
 		ByteBuf buffer = Unpooled.buffer();