Create the basic flow of the auth

[Serendipity2-0]

Create the basic flow of the auth

1. install dependencies
2. check how to store the hash passwords in db.
3. create the api to return the access token when the user logs in

[Serendipity2-0]

@srijan-11 : I have reference fast api code implemented in an opensource project. Check if this helps: https://github.com/LAION-AI/Open-Assistant/blob/main/backend/oasst_backend/api/deps.py

[Serendipity2-0]

For authorization: https://fastapi.tiangolo.com/tutorial/security/

[amolkittur]

Reassigned the task to @satyarth12 for the login auth flow