introduce new on-select update strategy:
introduce new on-select update strategy:

- use trace module style method to update DOM nodes
  (or call relevent gl update methods for gl-based trace types)
- add *new* call signature for style methods to style per-trace
  inside of per-graph (as not all traces in one graph are selected
  in general).

plotly/plotly.js,asolagmbh/plotly.js,iongroup/plotly.js,plotly/plotly.js,iongroup/plotly.js,asolagmbh/plotly.js,aburato/plotly.js,etpinard/plotly.js,plotly/plotly.js,aburato/plotly.js,etpinard/plotly.js,iongroup/plotly.js,etpinard/plotly.js,plotly/plotly.js,asolagmbh/plotly.js