Refactor output code, add JSON, TSV and YAML output modes, add -o (#19), add version subcommand

pkg/es/cluster_settings.go

@@ -23,6 +23,7 @@ import (
 	"log/slog"
 
 	"codeberg.org/scip/esctl/pkg/cfg"
+    "codeberg.org/scip/esctl/pkg/printer"
 	"github.com/urfave/cli/v3"
 )
 
@@ -65,7 +66,7 @@ func ClusterSettingsList(conf *cfg.Config) error {
 		return fmt.Errorf("failed to get cluster settings: %s", err)
 	}
 
-	table := NewTable(2, 0)
+	table := printer.NewTable(conf, 2, 0)
 	table.Addheaders("setting", "value")
 	entries := [][]string{}
 
@@ -94,10 +95,10 @@ func ClusterSettingsList(conf *cfg.Config) error {
 		}
 	}
 
-	table.entries = entries
+	table.Entries = entries
 	table.Sort()
 
-	if err := table.PrintMarkdown(); err != nil {
+	if err := table.Print(); err != nil {
 		return err
 	}