I made a new K8s Container

[RamboRogers]

Hello Team,

I built this for my K8s cluster. Seems to work pretty well so I figured I would share here. I'd like to copy into the examples folder to help others.

shadowsocks-server-k8s

[zonyitoo]

Feel free to open a PR if you will. Actually there already a compose configuration file k8s folder.