Optional support for Graphite-API

[webframp]

https://github.com/brutasse/graphite-api
http://graphite-api.readthedocs.org/en/latest/

[github-actions]

Marking stale due to inactivity. Remove stale label or comment or this will be closed in 7 days. Alternatively drop by the #sous-chefs channel on the Chef Community Slack and we'll be happy to help! Thanks, Sous-Chefs.