feat: allow to pass parseOption to CLI class

[alexander-akait]

What kind of change does this PR introduce?

feature

Did you add tests for your changes?

No, it is for future tests and public API

If relevant, did you update the documentation?

No need right now, it is not public

Summary

For tests

Does this PR introduce a breaking change?

No

Other information

Fix export, bevause we don't have commands right now, and we should pass cli instance to commands instead export utils

[codecov]

Codecov Report

Merging #2299 (692723a) into master (0191ebc) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2299      +/-   ##
==========================================
- Coverage   67.78%   67.76%   -0.02%     
==========================================
  Files          63       63              
  Lines        2483     2482       -1     
  Branches      570      570              
==========================================
- Hits         1683     1682       -1     
  Misses        800      800              

Impacted Files	Coverage Δ
packages/webpack-cli/lib/index.js	100.00% <100.00%> (ø)
packages/webpack-cli/lib/webpack-cli.js	89.53% <100.00%> (ø)

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