Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/github.com/gogo/protobuf/test/jsonpb-gogo/jsonpb_gogo.go

@@ -0,0 +1 @@
+package jsonpb_gogo

vendor/github.com/gogo/protobuf/test/jsonpb-gogo/jsonpb_gogo_test.go

@@ -0,0 +1,36 @@
+package jsonpb_gogo
+
+import (
+	"testing"
+
+	"github.com/gogo/protobuf/jsonpb"
+)
+
+// customFieldMessage implements protobuf.Message but is not a normal generated message type.
+type customFieldMessage struct {
+	someField string //this is not a proto field
+}
+
+func (m *customFieldMessage) Reset() {
+	m.someField = "hello"
+}
+
+func (m *customFieldMessage) String() string {
+	return m.someField
+}
+
+func (m *customFieldMessage) ProtoMessage() {
+}
+
+func TestUnmarshalWithJSONPBUnmarshaler(t *testing.T) {
+	rawJson := `{}`
+	marshaler := &jsonpb.Marshaler{}
+	msg := &customFieldMessage{someField: "Ignore me"}
+	str, err := marshaler.MarshalToString(msg)
+	if err != nil {
+		t.Errorf("an unexpected error occurred when marshaling message: %v", err)
+	}
+	if str != rawJson {
+		t.Errorf("marshaled JSON was incorrect: got %s, wanted %s", str, rawJson)
+	}
+}