Virtual enivironment in pipenv

[sbtlaarzc]

I recommend we use pipenv library for setting up the virtual-environment:

Pipenv — the officially recommended Python packaging tool from Python.org

In order to do this change I will change the requirements.txt file to Pipfile and Pipfile.lock. I will also add instructions to the Readme.md.

@matmr , @jankoslavic, @miha-pirnat do you agree?

[jankoslavic]

sure

[sbtlaarzc]

I created a seperate branch (pipenv), where you can test the pipenv. For instructions, see the Readme.md file.

[matmr]

First time hearing about it. Getting old I guess :D

Will check it out. Still think it might be good to have requirements.txt present. It's kind of a golden standard.