Add startup script to start the postgres instance on a selected port

[ororsatti]

Just easier to manage multiple postgres instances this way.

This script will:

1. set the port number you passed to it in the passport server .env
2. start the postgres instance with the selected port.
3. verify that you didnt try to use a already taken post, so you dont have to guess.

Works only on unix based machines tho (and, i think, WSL. didnt check tho)

[rrrliu]

@ororsatti what's the plan for this one? this would be cool to add, but there's a lot of merge conflicts and lint errors. we can close if that's too much effort.

[ororsatti]

@ororsatti what's the plan for this one? this would be cool to add, but there's a lot of merge conflicts and lint errors. we can close if that's too much effort.

@rrrliu fixed