Separate notebook embedding into separate feature

[slyons]

Right now the plugin as-is pulls in a lot of dependencies that may not be necessary. I want to use include_code for example, but I don't need anything from ipython or Jupyter.

Would it be possible to make it an optional feature ala this SO post?

[avaris]

For the record, pip install has this option:

  --no-deps                   Don't install package dependencies.

You can pick and choose your dependencies afterwards.