Enable Broker Authentication usign SASL mechanism

[rmarting]

This PR implements the #34 issue, but only focused in the SASL authentication mechanisms (nothing about TLS or secured connections).

This implementation is based on this documentation. Including the feature of enable different listeners and identify which one use for the inter-broker connections.

Using an inter-broker listener is a good pattern to split the traffic between consumers/producers and the internal broker. This feature covers the case of an authenticated listener too.

PS: This PR was implemented as an extension of the PR #33 (this is way some of the commits are described here).

[rmarting]

@guidograzioli @rpelisse What do you think?

[rmarting]

Added an extension to manage the authentication in the Kafka Connect cluster. Otherwise the Kafka connect will not be able to connect to an authenticated Kafka cluster managed by this collection.

[rmarting]

@rpelisse Merge done from the main branch. PR ready for your review!

[rpelisse]

Superseeded by https://github.com/ansible-middleware/amq_streams/pull/43

[rmarting]

Glad to see that my contributions are now merged into the main branch after the amazing review of my colleague @rpelisse. A great step forward of this collection.

[Neustradamus]

@rmarting, @rpelisse: Good job!

Linked to:

• https://github.com/scram-sasl/info/issues/1
• https://github.com/ansible-middleware/amq_streams/pull/35
• https://github.com/ansible-middleware/amq_streams/pull/43