[FEATURE] Data Prepper integration should support authentication

[jzonthemtn]

Is your feature request related to a problem?

Data Prepper integration should support authentication

What solution would you like?

When the Data Prepper http_source is configured for authentication, the plugin should be able to send queries to Data Prepper.

[jzonthemtn]

There is a branch for this in the old repository with a now closed pull request. That branch can be turned into a pull request here.

[dblock]

[Catch All Triage - Attendees 1, 2, 3, 4, 5]

[epugh]

Should we try and get this moved forward since we have the code written or just close it?