[#226] v2/object: Add tombstone field to DeleteResponseBody

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

v2/object/types.go

@@ -139,7 +139,9 @@ type DeleteRequestBody struct {
 	addr *refs.Address
 }
 
-type DeleteResponseBody struct{}
+type DeleteResponseBody struct {
+	tombstone *refs.Address
+}
 
 type HeadRequestBody struct {
 	addr *refs.Address
@@ -1124,6 +1126,22 @@ func (r *DeleteRequest) SetVerificationHeader(v *session.RequestVerificationHead
 	}
 }
 
+// GetTombstone returns tombstone address.
+func (r *DeleteResponseBody) GetTombstone() *refs.Address {
+	if r != nil {
+		return r.tombstone
+	}
+
+	return nil
+}
+
+// SetTombstone sets tombstone address.
+func (r *DeleteResponseBody) SetTombstone(v *refs.Address) {
+	if r != nil {
+		r.tombstone = v
+	}
+}
+
 func (r *DeleteResponse) GetBody() *DeleteResponseBody {
 	if r != nil {
 		return r.body