Add generated file

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

vendor/golang.org/x/tools/godoc/vfs/vfs.go

@@ -0,0 +1,58 @@
+// Copyright 2013 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.
+
+// Package vfs defines types for abstract file system access and provides an
+// implementation accessing the file system of the underlying OS.
+package vfs // import "golang.org/x/tools/godoc/vfs"
+
+import (
+	"io"
+	"io/ioutil"
+	"os"
+)
+
+// RootType indicates the type of files contained within a directory.
+//
+// It is used to indicate whether a directory is the root
+// of a GOROOT, a GOPATH, or neither.
+// An empty string represents the case when a directory is neither.
+type RootType string
+
+const (
+	RootTypeGoRoot RootType = "GOROOT"
+	RootTypeGoPath RootType = "GOPATH"
+)
+
+// The FileSystem interface specifies the methods godoc is using
+// to access the file system for which it serves documentation.
+type FileSystem interface {
+	Opener
+	Lstat(path string) (os.FileInfo, error)
+	Stat(path string) (os.FileInfo, error)
+	ReadDir(path string) ([]os.FileInfo, error)
+	RootType(path string) RootType
+	String() string
+}
+
+// Opener is a minimal virtual filesystem that can only open regular files.
+type Opener interface {
+	Open(name string) (ReadSeekCloser, error)
+}
+
+// A ReadSeekCloser can Read, Seek, and Close.
+type ReadSeekCloser interface {
+	io.Reader
+	io.Seeker
+	io.Closer
+}
+
+// ReadFile reads the file named by path from fs and returns the contents.
+func ReadFile(fs Opener, path string) ([]byte, error) {
+	rc, err := fs.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer rc.Close()
+	return ioutil.ReadAll(rc)
+}