ESA: Support for AWS authentication

User story:

As a customer of Efecte's Secure Access tool (ESA), I want to use Amazon Web Service authentication with SSO. 

Background information:

What?

• Amazon Web Services with SSO is asked by customers. 

How?

• ESA is to be able to login users from Amazon Web Services with SSO

Why?

• ESA Authentication catalog must be comprehensive for customers
• Manually entering the username and password for ESA is time-consuming and unproductive. SSO streamlines the user validation process for login and makes it easier to access protected resources.

To whom?

• All ESA customers
  • ESA Administrator can decide to use or not to use