Install Faraday

We use Faraday to query the authentication service to validate a user's token.
Install dotenv

Dotenv is used to configure the environment.
Provide protection for endpoints

A custom Sinatra extension has been implemented that handles the verification of a user token. Endpoints can be protected using the method "protected!", which returns 401 if the user cannot be authenticated.
Merge branch 'feature/chandelier-integration' into develop