feat: add benchmarks

[mtb0x1]

This PR will add 2 utils scripts to perform benchmarks :

• Benchmarks for packing with hermit.com.
• Benchmarks for binaries produced by hermit.com.

Example of current benchmarks with a VM(4xCPU : Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz, RAM 6GB) :

• Debug mode

Benching with cat.
Benchmark 1: hermit.com with cat
  Time (mean ± σ):     1737.8 ms ± 103.2 ms    [User: 1725.2 ms, System: 12.1 ms]
  Range (min … max):   1595.7 ms … 1915.7 ms    10 runs

Benching with count_vowels.
Benchmark 1: hermit.com with count_vowels
  Time (mean ± σ):     50272.0 ms ± 2673.0 ms    [User: 50248.9 ms, System: 19.0 ms]
  Range (min … max):   47441.7 ms … 54378.3 ms    10 runs

Benching with cowsay.
Benchmark 1: hermit.com with cowsay
  Time (mean ± σ):     30065.3 ms ± 1294.7 ms    [User: 30047.6 ms, System: 15.0 ms]
  Range (min … max):   28296.4 ms … 32019.9 ms    10 runs

• Release mode

Benching with cat.
Benchmark 1: hermit.com with cat
  Time (mean ± σ):      46.0 ms ±   4.6 ms   [User: 44.2 ms, System: 1.8 ms]
  Range (min … max):    40.0 ms …  60.3 ms    67 runs

Benching with count_vowels.
Benchmark 1: hermit.com with count_vowels
  Time (mean ± σ):     795.7 ms ±  33.1 ms    [User: 789.6 ms, System: 6.0 ms]
  Range (min … max):   734.3 ms … 841.0 ms    10 runs

Benching with cowsay.
Benchmark 1: hermit.com with cowsay
  Time (mean ± σ):     472.0 ms ±  18.6 ms    [User: 471.0 ms, System: 1.0 ms]
  Range (min … max):   447.8 ms … 508.2 ms    10 runs

[G4Vi]

Looks good, this will help with tracking performance. Just one spelling issue before I can merge. If you want to add running the benchmarks in actions that would be helpful, but not required to be added to this PR.

[mtb0x1]

Looks good, this will help with tracking performance. Just one spelling issue before I can merge. If you want to add running the benchmarks in actions that would be helpful, but not required to be added to this PR.

I will check the CI later this week.