[RFC] Upgrade to New Relic GraphQL API

[amayer5125]

New Relic recommends the newer Change Tracking feature instead of Deploy Markers. Change Tracking offers a few extra fields such as Commit SHA and Deep Links to deploy tools. New Relic also offers a CLI to make tracking deployments easier.

New Relic provides an image with the New Relic CLI already installed based on Alpine. It would be easy enough to extend their image and add the Concourse scripts. Or we could pull in their pre-built binary into our own image.

Breaking Changes

1. Updating to Change Tracking would require that we use entity GUIDs instead of Application IDs.
2. revision changes to version