Access to the CANBus parameters only through setters/getters

Also removed explicit copy constructor, in such trivial cases
compiler can create all needed copy/move stubs automatically

connections/canbus.h

@@ -5,13 +5,6 @@
 
 class CANBus
 {
-public:
-    CANBus();
-    CANBus(const CANBus&);
-    bool operator==(const CANBus&) const;
-    CANBus& operator=(const CANBus& other) = default;
-    //virtual ~CANBus(){}
-
     int speed;
     bool listenOnly;
     bool singleWire;
@@ -19,28 +12,36 @@ public:
     bool canFD;
     int dataRate;
 
+    friend QDataStream& operator<<(QDataStream & pStream, const CANBus& pCanBus);
+    friend QDataStream& operator>>(QDataStream & pStream, CANBus& pCanBus);
+public:
+    CANBus();
+
+    bool operator==(const CANBus&) const;
+
     void setSpeed(int); // new speed
     void setListenOnly(bool); //bool for whether to only listen
     void setSingleWire(bool); //bool for whether to use single wire mode
     void setActive(bool); //whether this bus should be enabled or not.
     void setCanFD(bool); // enable or disable CANFD support
-    int getSpeed();
-    int getDataRate();
     void setDataRate(int newSpeed);
-    bool isListenOnly();
-    bool isSingleWire();
-    bool isActive();
-    bool isCanFD();
+
+    int getSpeed() const;
+    int getDataRate() const;
+    bool isListenOnly() const;
+    bool isSingleWire() const;
+    bool isActive() const;
+    bool isCanFD() const;
 };
 
-QDataStream& operator<<( QDataStream & pStream, const CANBus& pCanBus );
-QDataStream & operator>>(QDataStream & pStream, CANBus& pCanBus);
+QDataStream& operator<<(QDataStream & pStream, const CANBus& pCanBus);
+QDataStream& operator>>(QDataStream & pStream, CANBus& pCanBus);
 
 Q_DECLARE_METATYPE(CANBus);
 
 struct BusData {
     CANBus             mBus;
-    bool               mConfigured;
+    bool               mConfigured = {};
     QVector<CANFltObserver>    mTargettedFrames;
 };