Add insiderange to cartesian axes

[archmoj]

This feature helps avoid overlap between desired range and inside tick labels of the counter axis.
@plotly/plotly_js

[stephprobst]

Thanks for this PR @archmoj. Looks very good to me. Just a few questions to verify my understanding:

• If the range attribute is provided, the insiderange attribute will be ignored?
• The new insiderange attribute will work with the new autorange options (e.g. minallowed)?
• On a chart with two y-axes. one left and one right, it won't be possible to use the insiderange on the left side and a normal range (overlapping with the labels) on the right side? This is probably not needed, but I just wanted to make sure I understand this correctly and will confirm with my users.

[archmoj]

Thanks for this PR @archmoj. Looks very good to me. Just a few questions to verify my understanding:

• If the range attribute is provided, the insiderange attribute will be ignored?

When range attribute is provided, the graph has a range and we use that. To declare insiderange, one could provide that and do not provide a range.

[archmoj]

• The new insiderange attribute will work with the new autorange options (e.g. minallowed)?
  When insiderange is provided. It is used as the default value for range.
  At this point (after 121a664) one have to provide both start and end points in insiderange.
  In future and in a separate PR we may support partial insiderange values (i.e. one end being null and set via autorange options).

[archmoj]

• On a chart with two y-axes. one left and one right, it won't be possible to use the insiderange on the left side and a normal range (overlapping with the labels) on the right side? This is probably not needed, but I just wanted to make sure I understand this correctly and will confirm with my users.

Not at the moment. It looks like an interesting feature to add.

[alexcjohnson]

💃 Looks great! All the behavior I see around relayout and such behaves just as I'd expect. Nice work 😎