[VENV] Removing old postgres setup and adding in venv

[gannonprudhomme]

From what I've read about it it'll just be easier if we get them to create a virtual environment from themselves and just have the libraries we want to use in requirements.txt included in the repo.

Also this way it's all platform independent, as using venv and creating my own virtual environment in normal Powershell and running activate worked completely fine. Likewise creating my own on macOS and installing it that way worked fine as well (whereas trying to run your branch didn't work on either)

[gannonprudhomme]

Replaced with my superior pull request