Const correctness, override keyword, a bunch of stuff..

include/flatbufserver/FlatBufferConnection.h

@@ -40,7 +40,7 @@ public:
 	///
 	/// @brief Destructor
 	///
-	~FlatBufferConnection();
+	~FlatBufferConnection() override;
 
 	/// @brief Do not read reply messages from Hyperion if set to true
 	void setSkipReply(bool skip);

include/flatbufserver/FlatBufferServer.h

@@ -21,7 +21,7 @@ class FlatBufferServer : public QObject
 	Q_OBJECT
 public:
 	FlatBufferServer(const QJsonDocument& config, QObject* parent = nullptr);
-	~FlatBufferServer();
+	~FlatBufferServer() override;
 
 public slots:
 	///