Feature request: Data visualization

[bfowle]

First, thanks for all the great work done on this project! Feature request: basic data visualization components outlined in the spec: https://material.io/design/communication/data-visualization.html

[plfiorini]

This is probably possible by using QtCharts. Seems there's quite a lot of stuff there. It appears to have some theming capabilities that one can use with the Material palette, although it seems to have hardcoded themes. Animations can be customized so we might do something Material specific.