Pie/Bar/Column Chart click handler

[Isomorphic]

3.1d has the APIs you need for this - see FacetChart.getNearestDrawnValue().

[patrickmann]

Would it be possible to add a click/double click handler for bar Pie/Bar/Column charts? Right now the only click handler is for points on a line chart. I would like to support drill down from my other charts as well.