Issue 1022 support plugin logging

[duffney]

Description

What this PR does / why we need it:

Improves the plugin experience by processing additional messages that are sent to stderr and stdout.

Which issue(s) this PR fixes #1022

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• [ x] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Helm Chart Change (any edit/addition/update that is necessary for changes merged to the main branch)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Test A
• Test B

Checklist:

• Does the affected code have corresponding tests?
• Are the changes documented, not just with inline documentation, but also with conceptual documentation such as an overview of a new feature, or task-based documentation like a tutorial? Consider if this change should be announced on your project blog.
• Does this introduce breaking changes that would require an announcement or bumping the major version?
• Do all new files have appropriate license header?

Post Merge Requirements

• MAINTAINERS: manually trigger the "Publish Package" workflow after merging any PR that indicates Helm Chart Change

[duffney]

NOTE: Ran into an issue when submitting this. Reviewing it now to fix the errors in the build. My git config must have gotten confused between Windows and WSL. :(

[duffney]

Closing & reopening PR to fix messed up commits. :)