Ipywidgets support

[heinwol]

Good day for everyone!

It would be great if one was able to use ipywidgets in Calysto. As far as I understand, the side responsible for displaying widgets is jupyter kernel and this feature is not implemented yet in Calysto (though I might be missing something).

Here's what I get when trying to display a widget object:

While the same code (literally translated) in python works perfectly fine for me.

Thanks for your attension!

[dsblank]

I think that this might be fixed with updates to calysto_metakernel on which this kernel relies.