Support minor features for Test262 tests

[taxor03]

This PR includes:

• Add Array.prototype.includes to supported feature
• Add exponentiation to supported feature

[jhnaldo]

I implemented two more functionalities:

• The -test262-test:features option to test only the specific language features of Test262 tests.
• The StrListOption for argument parsing.
  With these extensions, we can perform Test262 tests only related to the language features Array.prototype.includes and exponentiation as follows:

esmeta test262-test -test262-test:features=Array.prototype.includes,exponentiation

The following is the result:

- time: 18,866 ms [00:18]
- total: 165
  - not-supported (N): 71
    - internationalisation: 25
    - feature: 20
      - change-array-by-copy: 7
      - Temporal: 4
      - resizable-arraybuffer: 3
      - TypedArray: 2
      - Atomics: 1
      - RegExp: 1
      - ShadowRealm: 1
      - ArrayBuffer: 1
    - negative: 14
    - metalanguage: 12
      - If _exponent_ is an odd integral Number, return *-0*<sub>𝔽</sub>. Otherwise, return *+0*<sub>𝔽</sub>.: 6
      - If _exponent_ is an odd integral Number, return *-∞*<sub>𝔽</sub>. Otherwise, return *+∞*<sub>𝔽</sub>.: 5
      - Replace _pe_ in _container_ with _combined_.: 1
  - pass (P): 94
- pass-rate: P/P = 94/94 (100.00%)