[#1437] neofs-cli: Move util command to a separate package

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

cmd/neofs-cli/modules/util/root.go

@@ -0,0 +1,33 @@
+package util
+
+import (
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var Cmd = &cobra.Command{
+	Use:   "util",
+	Short: "Utility operations",
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+		flags := cmd.Flags()
+
+		_ = viper.BindPFlag(commonflags.GenerateKey, flags.Lookup(commonflags.GenerateKey))
+		_ = viper.BindPFlag(commonflags.WalletPath, flags.Lookup(commonflags.WalletPath))
+		_ = viper.BindPFlag(commonflags.Account, flags.Lookup(commonflags.Account))
+	},
+}
+
+func init() {
+	Cmd.AddCommand(
+		signCmd,
+		convertCmd,
+		keyerCmd,
+		locodeCmd,
+	)
+
+	initSignCmd()
+	initConvertCmd()
+	initKeyerCmd()
+	initLocodeCmd()
+}