Introduce Golang-based benchmarking utility (#769)

* Introduce Golang-based benchmarking utility

* benchmark fio: properly configure logger level

* benchmark: properly terminate on Ctrl+C when initializing/running Tart

* benchmark(fio): increase runtime to 30 seconds

* benchmark(fio): IOPS are already per second

* benchmark(fio): --numjobs 1 --iodepth 1 --end_fsync 1

* benchmark(README.md): add results

benchmark/cmd/main.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"context"
+	"github.com/cirruslabs/tart/benchmark/internal/command"
+	"log"
+	"os"
+	"os/signal"
+)
+
+func main() {
+	// Set up a signal-interruptible context
+	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
+
+	// Run the root command
+	if err := command.NewCommand().ExecuteContext(ctx); err != nil {
+		cancel()
+
+		log.Fatal(err)
+	}
+
+	cancel()
+}