[#1092] neofs-cli: Add 'acl extended create' command

Follows neofs-cli refactor scheme from #1074

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

cmd/neofs-cli/modules/acl/extended/root.go

@@ -0,0 +1,12 @@
+package extended
+
+import "github.com/spf13/cobra"
+
+var Cmd = &cobra.Command{
+	Use:   "extended",
+	Short: "Operations with Extended Access Control Lists",
+}
+
+func init() {
+	Cmd.AddCommand(createCmd)
+}