REST: expose /v1.0/docker/cli results as JSON

[matthieudelaro]

We can get the GPU list from /v1.0/gpu/info/json, but we can't get the names of extra devices such as nvidiactl and nvidia-uvm. Neither can we get the name of the volume, nor the name of the driver.

[matthieudelaro]

Thanks!

[matthieudelaro]

So-called PR (Github doesn't support PR on wiki):

I documented this RestAPI endpoint in the wiki: matthieudelaro/nvidia-docker-wiki@4170454, so that people know about the endpoint when it will be included in the release.