feat(jupyter): Add `Deno.jupyter.image` API

[bartlomieju]

Added an API for quickly displaying images:

const data = Deno.readFileSync("./my-image.jpg");
Deno.jupyter.image(data);

[bartlomieju]

@jtpio if I might ping you - is it expected that GIFs should be rendered properly as well? I tried adding support for GIFs but unfortunately that results in cell being evaluated indefinitely and not showing anything.

[jtpio]

Normally GIFs should indeed be rendered properly in JupyterLab and Jupyter Notebook.

For example when testing with the Python kernel and one of the example gifs:

ipython-gif.webm