Windows: Updates Windows Vendoring

Updates windows dependent libraries for vendoing.

vendor/github.com/Microsoft/hcsshim/cmd/wclayer/create.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"path/filepath"
+
+	"github.com/Microsoft/hcsshim"
+	"github.com/Microsoft/hcsshim/internal/appargs"
+	"github.com/urfave/cli"
+)
+
+var createCommand = cli.Command{
+	Name:  "create",
+	Usage: "creates a new writable container layer",
+	Flags: []cli.Flag{
+		cli.StringSliceFlag{
+			Name:  "layer, l",
+			Usage: "paths to the read-only parent layers",
+		},
+	},
+	ArgsUsage: "<layer path>",
+	Before:    appargs.Validate(appargs.NonEmptyString),
+	Action: func(context *cli.Context) error {
+		path, err := filepath.Abs(context.Args().First())
+		if err != nil {
+			return err
+		}
+
+		layers, err := normalizeLayers(context.StringSlice("layer"), true)
+		if err != nil {
+			return err
+		}
+
+		di := driverInfo
+		return hcsshim.CreateScratchLayer(di, path, layers[len(layers)-1], layers)
+	},
+}