Add support for Ibis

[mwouts]

Will eventually close #215

[cpcloud]

@mwouts Happy to take a look per your comment about hints. Are there any specific questions I can answer?

[mwouts]

Thanks @cpcloud ! Yes for now I have three questions:

1. Do you see how we could set an _repr_html_ attribute on the ibis objects? My attempt above was not effective
2. I would need a way to estimate the number of bytes in the tables. This can be an approximation (I will use that to downsample the table if its too large to be displayed in full).
3. How can I access the table data? I need to pass a JSON representation of the table elements (list of list, inner lists are rows) to the datatables-net library.

[mwouts]

Hi @cpcloud @lostmygithubaccount are you still interested in this feature? If so I'd need your answers to my questions above. Thanks