deepcopy: add interface deepcopy funcs

- add DeepCopyObject() to runtime.Object interface
- add DeepCopyObject() via deepcopy-gen
- add DeepCopyObject() manually
- add DeepCopySelector() to selector interfaces
- add custom DeepCopy func for TableRow.Cells

pkg/apis/authentication/types.go

@@ -38,6 +38,7 @@ const (
 // +genclient=true
 // +nonNamespaced=true
 // +noMethods=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // TokenReview attempts to authenticate a token to a known user.
 type TokenReview struct {