JSAPI support for fetching full array from an array preview column

[dsmmcken]

As a user, I would like to be able to view the full value from an array preview column's cell. Similar to how display cell overflow works.

This needs both jsapi support for fetching the array and a UI (should behave the same as display cell overflow)

[dsmmcken]

Further, I would also like to be able to have a column that is a double[] for example, which is part of a grouping operation that ticks more values on to the array, and I would like to subscribe to get the full array for each row in the viewport with updates instead of a preview column. Also related to #3358

I am imagining being able to do something like:
t = quotes.tail_by(100, by=["sym"]).group_by("sym").format_column("price = sparkline(price)")

"Sparkline" example:

[niloc132]

Likely should be done as part of #188, the final point about handling serializable types better.

[jnumainville]

There are some cases where it would be useful to have the fully array for plotly figure objects. For example, the customdata object below. Both the first and second elements of the inner arrays are columns from a table. It would be best to reshape the columns into this array then substitute in that array to the customdata object.

'customdata': array([['Asia', 31889923],
                                   ['Europe', 3600523],
                                   ['Africa', 33333216],
                                   ...,
                                   ['Asia', 22211743],
                                   ['Africa', 11746035],
                                   ['Africa', 12311143]], dtype=object)

@niloc132 @mofojed @mattrunyon