POC for Selective consumption for a subscription id

[samizzy]

Description

The PR allows a publisher to publish events to a given event type using the standard publishing API and allows only particular consumers with a specific subscription id to consume these events. The publishing api has been slightly modified to accept a query param subscription-id for this purpose.

In case of consumers using the deprecated consumption api they dont receive any events that are published using the above API.

A few sentences describing the overall goals of the pull request's commits.

Review

• [ X ] Tests
• [ X ] Documentation

[a1exsh]

:+1:

[samizzy]

:+1:

[a1exsh]

:+1: