Add generated file

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

vendor/golang.org/x/tools/cmd/present/appengine.go

@@ -0,0 +1,22 @@
+// Copyright 2012 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build appengine
+
+package main
+
+import (
+	"mime"
+
+	"golang.org/x/tools/present"
+)
+
+func init() {
+	initTemplates("./present/")
+	present.PlayEnabled = true
+	initPlayground("./present/", nil)
+
+	// App Engine has no /etc/mime.types
+	mime.AddExtensionType(".svg", "image/svg+xml")
+}