Message: Create a type system so non-frame data can be represented

This change breaks existing code, hence the version bump, but it's
going to be much less error prone going forward.

include/icsneo/communication/message/main51message.h

@@ -8,9 +8,9 @@
 
 namespace icsneo {
 
-class Main51Message : public Message {
+class Main51Message : public RawMessage {
 public:
-	virtual ~Main51Message() = default;
+	Main51Message() : RawMessage(Message::Type::Main51, Network::NetID::Main51) {}
 	Command command = Command(0);
 	bool forceShortFormat = false; // Necessary for EnableNetworkCom and EnableNetworkComEx
 };