[Feature Request]: Logger plugin to send Hop logs to Graylog

### What would you like to happen?

Write a plugin to easily ingest Hop Logs into Graylog LMS

### Issue Priority

Priority: 3

### Issue Component

Component: Other

Start by locating Hop's plugin extension points and documenting the Graylog LMS ingestion requirements. Define the supported log format, configuration, and acceptance criteria before implementation; done means Hop logs can be ingested into Graylog through the plugin.

Written by the indexing model from the issue text.