Add a delete command

[danmikita]

A very typical workflow is deleting the Deployment, service, and replicaset. This feature will require the use of multiselect functionality. It will also need to pull in the OpenShift go-client dependency to support the DeploymentConfig resource type.

[nathanbedford]

I'd love to work on this one

[danmikita]

@nathanbedford That would be awesome! Let me know if you want to sit down and take a look at what we have so far.