Authentication module for Tesla API

[DominikMarciniszyn]

Description
We need to prepare authentication module which allow us to connect to Tesla API. NestJs i supporting Passport to authentication. Some examples for Tesla API we can find in this library https://github.com/davesag/node-tesla-api#readme. The goal is to have authentication module prepared and tested.

Acceptance Criteria

• Authentication module is created
• Tests are written to cover as many as possible different scenarios

Additional Information
Because we are waiting for credentials, we cannot test in real the connection, but module can be prepared. Tests should be on mocks. After we obtain credentials we can check real connection. Important information - credentials cannot be in the repository!