Add support for 3D Series Type in RadChartView.

A RadCartesianChart3D was introduced with R3 2016. You can use its BarSeries3D to easily achieve the Manhattan chart visualization.

See the documentation: 
http://docs.telerik.com/devtools/wpf/controls/radchartview3d/overview
See the SDK examples: 
https://github.com/telerik/xaml-sdk/tree/master/ChartView3D/WPF
See the demos: 
https://demos.telerik.com/wpf/