Implement series input handling

In QtCharts, different series contain clicked/pressed etc. signals:
AbstractBarSeries: https://doc.qt.io/qt-6/qml-qtcharts-abstractbarseries.html#clicked-signal 
AreaSeries: https://doc.qt.io/qt-6/qml-qtcharts-areaseries.html 
PieSeries: https://doc.qt.io/qt-6/qml-qtcharts-pieseries.html 
XYSeries: https://doc.qt.io/qt-6/qml-qtcharts-xyseries.html 

Currently QtGraphs 2D supports only common QAbstractSeries selectable and hoverable properties, not individual series inputs. Design and implement these APIs to all series.