Add jupyter, ipykernel to depedencies

[tobin-ford]

Describe the bug
Jupyter and ipykernel are not included in pvdeg dependencies. Users are missing the ability to run notebooks when installing a new pvdeg environment and have to do this separately.

Should we add these dependencies to the project?

How do we handle ipykernel install. Should we add notes for this, it is very frustrating to setup anaconda environments for jupyter notebooks if you do not immediately know about this command.
python -m ipykernel install --user --name=<conda-env>

[martin-springer]

this is now documented in the new Contributing.md. closed with #302