Adds a new workflow that generates images and other results we may want off of test cases and posts them into a secondary repo. The workflow then comments back to the PR with a link to those results, which should open the door for us to do more advanced testing and raise our confidence in results.

Before accepting this PR, we need to ensure this is set in the settings:

With the way this workflow is developed, it risks malicious entities editing the workflow to steal the secret enabling write permission to the results repo. Given this repo won't be used for anything other than storing results, this likely isn't that big of a risk, but it's good practice to just disable workflows for external users until someone on the dev team approves workflow execution

[rebuild-cache]