Add initial prototype (#1)

* Add survey library to select server

* Add speedtest

* Add --random flag to connect

* Add list command

* Cache server list

* Tail the openvpn logs so that it appears in vpngate logs

* Add goreleaser action

* Add golangci-lint action

cmd/list.go

@@ -0,0 +1,40 @@
+package cmd
+
+import (
+	"os"
+	"strconv"
+
+	"github.com/olekukonko/tablewriter"
+	"github.com/rs/zerolog/log"
+
+	"github.com/davegallant/vpngate/pkg/vpn"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(listCmd)
+}
+
+var listCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List all available vpn servers",
+	Args:  cobra.NoArgs,
+	Run: func(cmd *cobra.Command, args []string) {
+
+		vpnServers, err := vpn.GetList()
+
+		if err != nil {
+			log.Fatal().Msgf(err.Error())
+			os.Exit(1)
+		}
+
+		table := tablewriter.NewWriter(os.Stdout)
+		table.SetHeader([]string{"#", "HostName", "Country", "Ping", "Score"})
+
+		for i, v := range *vpnServers {
+			table.Append([]string{strconv.Itoa(i + 1), v.HostName, v.CountryLong, v.Ping, strconv.Itoa(v.Score)})
+		}
+		table.Render() // Send output
+
+	},
+}