[Game][Counters] Split counters into AbstractCounter (graphics) and CounterState (logic) (#6917)

* [Counters] Split counters into graphics and logic states

Took 22 minutes

* Don't have widget hold pointer to state -> Copy what we need and subscribe to changes.

Took 12 minutes

Took 5 seconds

* Sync value too.

Took 3 minutes

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/game/board/counter_general.h

@@ -12,17 +12,10 @@
 class GeneralCounter : public AbstractCounter
 {
     Q_OBJECT
-private:
-    QColor color;
-    int radius;
 
 public:
-    GeneralCounter(PlayerLogic *_player,
-                   int _id,
-                   const QString &_name,
-                   const QColor &_color,
-                   int _radius,
-                   int _value,
+    GeneralCounter(CounterState *state,
+                   PlayerLogic *player,
                    bool useNameForShortcut = false,
                    QGraphicsItem *parent = nullptr);
     QRectF boundingRect() const override;