Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Proxies/DifferentialGPS/Simulator/main_sim.h

@@ -0,0 +1,40 @@
+
+
+
+#pragma once
+
+#include <QTcpServer>
+
+class QTimer;
+class PayloadSender : public QObject
+{
+  Q_OBJECT
+public:
+  PayloadSender(int numByte, int ctrFail, QTcpSocket *s, QObject *parent = nullptr);
+  ~PayloadSender();
+
+private Q_SLOTS:
+  void onTimeout();
+private:
+  QTcpSocket *m_socket;
+  QTimer *m_timer;
+  char m_char;
+  int  m_numByte;
+  int  m_ctrFail;
+};
+
+class TcpTestServer : public QTcpServer
+{
+  Q_OBJECT
+public:
+  TcpTestServer(int numByte, int ctrFail, QObject *parent = nullptr);
+  ~TcpTestServer();
+
+private Q_SLOTS:
+  void onNewIncomingConnection();
+  void onPayloadSenderDestroyed(QObject *obj);
+private:
+  QSet<QObject *> m_openConnections;
+  int m_numByte;
+  int m_ctrFail;
+};