Dependency installation should be automated with Pipenv

[sharpvik]

Why Apple's iPhone was such a great success? - It worked out of the box!
I downloaded ZIP but when I ./run.sh, Python would point out that I don't have all the dependencies installed. So now, I guess I have to install each one of them manually. That's no good.

Instead, I propose that Pipenv is used in order to manage dependencies. If that solution is adapted, this is what Open Assistant installation might look like in the future:

# Download ZIP and extract, then...
cd Open-Assistant-master

pip3 install pipenv    # (optional) in case user does not have pipenv already
pipenv shell
pipenv install

./run.sh

[GuiLeme]

I think that would be nice too, do you have a Patch to PR? I will try and run this repo (just discovered it, hehehe).