Add "Extract archive" menu entry to FileBrowser

It would be a nice addition to https://github.com/jupyter/notebook/pull/4945.

With both features, working with local/remote files in a remote Jupyter kernel environment will be much easier.

I could implement it in [jupyter-archive](https://github.com/hadim/jupyter-archive) and then port it to `notebook` and JLab.

Start by reading pull request 4945 and the existing implementation in jupyter-archive, then inspect the FileBrowser entry points in notebook and JupyterLab. Done means both interfaces provide an "Extract archive" menu entry that works for local and remote files in a remote Jupyter kernel environment.

Written by the indexing model from the issue text.