scatter3d zooms on scroll even if zoomScroll is false

[antoinerg]

See codepen example: https://codepen.io/antoinerg/pen/YOaaaZ

[etpinard]

Old news, but true.

related: #143

[etpinard]

I don't think we should fix this bug (in v1.x at least), but instead we add a new a config option for 3D scroll zoom (and another for geo scroll zoom).

Why?

• 3D and geo subplots don't offer another way to zoom into subplot other than scrolling. In other words, scroll zoom isn't as "optional" as for cartesian graphs
• the scrollZoom default is currently false, so enforcing that scrollZoom default in 3D and geo subplots would be a breaking change (unless we add some fancy hacky logic to override the scrollZoom default whenever 3D and geo subplots are present on the graph, but this sounds like a nigthmare).

[etpinard]

done in #3422