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/certificates/types.go

@@ -20,6 +20,7 @@ import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 // +genclient=true
 // +nonNamespaced=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // Describes a certificate signing request
 type CertificateSigningRequest struct {
@@ -102,6 +103,8 @@ type CertificateSigningRequestCondition struct {
 	LastUpdateTime metav1.Time
 }
 
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type CertificateSigningRequestList struct {
 	metav1.TypeMeta
 	// +optional