feat(parameters): add defaults and remove qt keywords

src/Gui/Viewport/Viewport.h

@@ -23,6 +23,6 @@ private:
     QPointF leftStartPos_;
     bool rightMouseDown_=false;
     QPointF rightStartPos_;
-public slots:
+public Q_SLOTS:
     void geometryChanged(enzo::geo::Geometry& geometry);
 };

src/Gui/Viewport/ViewportGLWidget.h

@@ -25,6 +25,6 @@ protected:
     void resizeGL(int w, int h) override;
     void paintGL() override;
 
-public slots:
+public Q_SLOTS:
     void geometryChanged(enzo::geo::Geometry& geometry);
 };