feat(bin/oli): implement oli bench

[tisonkun]

$ ./target/debug/oli bench --config dev/config.toml demo dev/suite.toml
Create bench suite with config: BenchSuiteConfig { workload: Download, parallelism: Some(4), file_size: 67108864, timeout: 60s }
Start running bench suite ...
Bench suite completed in 60.066151875s; result:

Parallel tasks: 4
Workload: download
File size: 64 MiB

Bandwidth:
  count: 4229
  min: 522.03 MiB
  max: 1.41 GiB
  avg: 1.12 GiB
  stddev: 97.19 MiB
  p99: 1.30 GiB
  p95: 1.25 GiB
  p50: 1.13 GiB/s

Latency:
  count: 4229
  min: 44ms 248us
  max: 122ms 597us
  avg: 56ms 328us
  stddev: 5ms 681us
  p99: 73ms 661us
  p95: 65ms 225us
  p50: 55ms 468us

IOPS:
  count: 4229
  min: 1.839
  max: 17.628
  avg: 17.100
  stddev: 1.350
  p99: 17.610
  p95: 17.582
  p50: 17.424

Alongside resolves #5362.

[tisonkun]

Credit to @leiysky. I'd add a commit for co-authored.

[Xuanwo]

Thank @tisonkun and @leiysky a lot for building this!