Feature Request: Task support

[dhrapson]

Hi, it would be great if Task support could be added to this plugin.

[kkellner]

Cloud Foundry is not emitting container metrics for tasks. I submitting a bug report in July 2017. In order to display useful task info, I need Cloud Foundry to support this.

https://www.pivotaltracker.com/n/projects/966314/stories/149823405