Add outline for `deck` command

sevenkeys/main.go

@@ -15,6 +15,7 @@ const (
 	CreateStorageAreaSubcommand string = "createstorage"
 	ImportSubcommand            string = "import"
 	SearchSubcommand            string = "search"
+	DeckSubcommand              string = "deck"
 )
 
 func main() {
@@ -83,6 +84,12 @@ func main() {
 		logic.Check(err)
 		logic.GenericSearch(searchOptions)
 		break
+	case DeckSubcommand:
+		deckCmd := flag.NewFlagSet(DeckSubcommand, flag.ExitOnError)
+		deckCmd.Parse(flag.Args()[1:])
+
+		filename := deckCmd.Args()[0]
+		break
 	default:
 		fmt.Fprintf(os.Stderr, "Unrecognized subcommand: %s\n", os.Args[1])
 		break