Assume recalc is needed when restyling attribute containers

[etpinard]

fixes #1526

So that:

Plotly.restyle(gd, {
  marker: {
    color: ['red', 'blue', 'green']
  }
})

works in all situations.

[etpinard]

A little bit hacky as this relies on the fact that attribute containers (e.g. marker) don't have a valType field set in the attribute declarations.

Morevoer, we could optimize this further by digging into the attribute container for arrayOk keys, but I thought this wasn't necessary. For best-performing restyle calls, users should target specific attributes e.g. restyle(gd, 'marker.color', [['red', 'blue', 'green']]).

[alexcjohnson]

if an attribute container did have a valType field, would (or could) the schema validation tests fail?

I agree 💯 it's not worth optimizing this.

[etpinard]

It would because if it had a valType field it would only need a valid role (i.e. set to 'info' | 'style' | 'data') field to pass this test.

[alexcjohnson]

Great, then I'm happy with this hack.

[alexcjohnson]

💃