Env file python script

[ollibowers]

Simple no dep python script built on dotenv or so, that sets up the env files. TUI.

Required functionality:

• for env variables such as mongo password, where it lives in both backend env and mongodb env, you only need to input it in once
• if the files already exist, when the user is prompted to enter, suggests them to use the old one instead
  • this is because we dont want to accidently overwrite the files and be painful to find the auth env vars again
• certain fields allow for empty input, where it will auto generate
• also can specify as keyword command line arguments for easy use in the ci file
• otherwise if no CL argument or existing, will prompt user to enter each

Main usecases:

• in ci, replaces all the echos
• must leave files that are compatible with ci and docker compose env

python3 setup_env.py --mongodb-pass="ollipass"

[imagine-hussain]

Completed in #1159