Implement a Kubernetes driver

[micahhausler]

A Kubernetes ConfigMap (or Secret) driver would be really handy for applications that already use libkv (like traefik), and supports almost the whole interface.

Calls	Kubernetes	Notes
Put	X
Get	X
Delete	X
Exists	X
Watch	X
WatchTree
NewLock (Lock/Unlock)	X	Can kind of fudge this with annotations
List	X
DeleteTree
AtomicPut
Close	X

The key could be something like namespace/configMapName/key, but there are lots of possibilities.

This may be out of scope, but I just wanted to surface the idea