Party invite done, as well as chat. Fixed double output of say packets. Note: Still need to implement name version of invite!!!

FFXIVClassic World Server/Packets/Receive/Subpackets/PartyChatMessagePacket.cs

@@ -0,0 +1,31 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace FFXIVClassic_World_Server.Packets.Receive.Subpackets
+{
+    class PartyChatMessagePacket
+    {
+        public uint actorId;
+        public string message;
+
+        public bool invalidPacket = false;
+
+        public PartyChatMessagePacket(byte[] data)
+        {
+            using (MemoryStream mem = new MemoryStream(data))
+            {
+                using (BinaryReader binReader = new BinaryReader(mem))
+                {
+                    try{
+                        actorId = binReader.ReadUInt32();
+                        message = Encoding.ASCII.GetString(binReader.ReadBytes(0x200)).Trim(new [] { '\0' });
+                    }
+                    catch (Exception){
+                        invalidPacket = true;
+                    }
+                }
+            }
+        }
+    }
+}