VOL-2496 Add "event listen" command to voltctl

Change-Id: I8f1fb34b55f56c8125142ac289e2f19fc170d804
diff --git a/vendor/gopkg.in/jcmturner/gokrb5.v7/types/TypedData.go b/vendor/gopkg.in/jcmturner/gokrb5.v7/types/TypedData.go
new file mode 100644
index 0000000..19e9f49
--- /dev/null
+++ b/vendor/gopkg.in/jcmturner/gokrb5.v7/types/TypedData.go
@@ -0,0 +1,18 @@
+package types
+
+import "github.com/jcmturner/gofork/encoding/asn1"
+
+// TypedData implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.9.1
+type TypedData struct {
+	DataType  int32  `asn1:"explicit,tag:0"`
+	DataValue []byte `asn1:"optional,explicit,tag:1"`
+}
+
+// TypedDataSequence implements RFC 4120 type: https://tools.ietf.org/html/rfc4120#section-5.9.1
+type TypedDataSequence []TypedData
+
+// Unmarshal bytes into the TypedDataSequence.
+func (a *TypedDataSequence) Unmarshal(b []byte) error {
+	_, err := asn1.Unmarshal(b, a)
+	return err
+}