[DOC OCP] Deploying the Kafka Bridge w/ 3scale

Create new assembly related to the use of 3scale with the Kafka Bridge. 3scale offered as an alternative deployment option for the Kafka Bridge.

Requires concepts and deployment procedure. Additional 3scale info available from its own supporting documentation.

• CONCEPTS: Using the Bridge with 3scale
  • What we want to achieve: authentication and security, throttling, TLS and encryption
  • Different types of authentication
• PROC: Deploying 3scale gateway steps in same openshift cluster
  • Running streams, bridge & 3scale (downstream only)
• 3scale doc: https://access.redhat.com/documentation/en-us/red_hat_3scale_api_management/2.5/
• Not required: how to deploy API manager