KEP05: K8S CRUD Support

[kensipe]

The k8s package should provide conveniences for interacting with Kubernetes objects.

• Partial CRUD functionality for namespaces
• CRUD functionality for all useful Kubernetes objects
• Current known use-cases:
• Creating and deleting namespaces during test runs

This should likely include WaitFor functions

package k8s
func Init(kubectlOptions *kubectl.KubectlOptions) error
func CreateNamespace(namespaceName string) error
func DeleteNamespace(namespaceName string) error