rebase: vendor files required for kmip

Signed-off-by: Rakshith R <rar@redhat.com>

vendor/github.com/gemalto/kmip-go/op_discover_versions.go

@@ -0,0 +1,47 @@
+package kmip
+
+import (
+	"context"
+)
+
+// 4.26
+
+type DiscoverVersionsRequestPayload struct {
+	ProtocolVersion []ProtocolVersion
+}
+
+type DiscoverVersionsResponsePayload struct {
+	ProtocolVersion []ProtocolVersion
+}
+
+type DiscoverVersionsHandler struct {
+	SupportedVersions []ProtocolVersion
+}
+
+func (h *DiscoverVersionsHandler) HandleItem(ctx context.Context, req *Request) (item *ResponseBatchItem, err error) {
+	var payload DiscoverVersionsRequestPayload
+
+	err = req.DecodePayload(&payload)
+	if err != nil {
+		return nil, err
+	}
+
+	var respPayload DiscoverVersionsResponsePayload
+
+	if len(payload.ProtocolVersion) == 0 {
+		respPayload.ProtocolVersion = h.SupportedVersions
+	} else {
+		for _, v := range h.SupportedVersions {
+			for _, cv := range payload.ProtocolVersion {
+				if cv == v {
+					respPayload.ProtocolVersion = append(respPayload.ProtocolVersion, v)
+					break
+				}
+			}
+		}
+	}
+
+	return &ResponseBatchItem{
+		ResponsePayload: respPayload,
+	}, nil
+}