[JOSS] document all dependencies

[kandersolar]

[JOSS] document all dependencies

[EwaGomez]

Thank you for your comment!
I created a requirement.txt to display all dependencies.

Additionally we created a setup.py, which we are still running some tests with. That will make the installation process a lot easier. I am sure, we will be able to commit it in the next 14 days.

[kandersolar]

Thanks @EwaGomez, I suggest also mentioning in the README how to use the new requirements file during installation, unless you'd rather wait until the setup.py is ready.

[EwaGomez]

Yes, I will mention that when the setup.py is ready! Thank you!