Update photon controller go SDK in vendor code.

vendor/github.com/vmware/photon-controller-go-sdk/photon/subnets.go

@@ -0,0 +1,72 @@
+// Copyright (c) 2017 VMware, Inc. All Rights Reserved.
+//
+// This product is licensed to you under the Apache License, Version 2.0 (the "License").
+// You may not use this product except in compliance with the License.
+//
+// This product may include a number of subcomponents with separate copyright notices and
+// license terms. Your use of these subcomponents is subject to the terms and conditions
+// of the subcomponent's license, as noted in the LICENSE file.
+
+package photon
+
+import (
+	"bytes"
+	"encoding/json"
+)
+
+// Contains functionality for subnets API.
+type SubnetsAPI struct {
+	client *Client
+}
+
+var subnetUrl string = "/temp-subnets/"
+
+// Deletes a subnet with the specified ID.
+func (api *SubnetsAPI) Delete(id string) (task *Task, err error) {
+	res, err := api.client.restClient.Delete(api.client.Endpoint+subnetUrl+id, api.client.options.TokenOptions)
+	if err != nil {
+		return
+	}
+
+	defer res.Body.Close()
+
+	task, err = getTask(getError(res))
+	return
+}
+
+// Gets a subnet with the specified ID.
+func (api *SubnetsAPI) Get(id string) (subnet *Subnet, err error) {
+	res, err := api.client.restClient.Get(api.client.Endpoint+subnetUrl+id, api.client.options.TokenOptions)
+	if err != nil {
+		return
+	}
+	defer res.Body.Close()
+	res, err = getError(res)
+	if err != nil {
+		return
+	}
+	var result Subnet
+	err = json.NewDecoder(res.Body).Decode(&result)
+	return &result, nil
+}
+
+// Updates subnet's attributes.
+func (api *SubnetsAPI) Update(id string, subnetSpec *SubnetUpdateSpec) (task *Task, err error) {
+	body, err := json.Marshal(subnetSpec)
+	if err != nil {
+		return
+	}
+
+	res, err := api.client.restClient.Put(
+		api.client.Endpoint+subnetUrl+id,
+		"application/json",
+		bytes.NewReader(body),
+		api.client.options.TokenOptions)
+	if err != nil {
+		return
+	}
+
+	defer res.Body.Close()
+	task, err = getTask(getError(res))
+	return
+}