Enhancement request for additional plugins support

[AnghelGabriel]

Is there any chance of adding this plugins into angular-charts.js?
Thanks.

Chart.Zoom.js - Enable zooming and panning on charts
Chart.Annotation.js - Draw lines and boxes on chart area
Chart.BarFunnel.js - Adds a bar funnel chart type
Chart.Deferred.js - Defer initial chart update until chart scrolls into viewport
Chart.Smith.js - Adds a smith chart type
Chart.LinearGauge.js - Adds a linear gauge chart type

[jtblin]

PRs welcome ;)

[gillirabbi]

+1

[chorsnell]

@jtblin looks like someone made one #643