As a user, I want to delete OpenShift resources

We should allow users to remove OpenShift v3 resources.
Beside the primary usecase there's an additional requirement: If you submit several resource creations in 1 config/file the backend might stop processing right in the middle, the operation is not transactional. We therefore need to allow the user to clean up.

Any resource in the browser may be deleted except projects. Project are a special case where we MAY need to 'cleanup' all the resources associated with the project. Defer handling that case for now