add packet declare syntax check

include/blitz/protocol/PacketDeclare.h

@@ -14,13 +14,19 @@ namespace protocol {
  */
 enum class PacketSenderType {
 	/** Sent by clients and server */
-	Both,
+	Both = 1,
 	/** Sent by clients to the server */
 	Client,
 	/** Sent by server to the clients */
 	Server,
 };
 
+enum class PacketSendType {
+	Reliable = 1,
+	Unreliable,
+	UnreliableOrdered,
+};
+
 
 /**
  * \def DeclareAllPacket