feat(matchers): support asymmetric matchers

[Ailrun]

resolve #36

What: Support asymmetric matchers (#36)

Why: Using asymmetric matchers make tests easier

How: see https://github.com/facebook/jest/blob/be4bec387d90ac8d6a7596be88bf8e4994bc3ed9/packages/expect/src/jasmine_utils.js#L36

This can support expect@^21 || ^22, and jest-matchers@^19 || ^20, but I do not know how to add exclusive-or-ly those peerDeps. Is there a way to do so?

[Ailrun]

Oh, there're some coverage problems. I will add some tests...

[codecov]

Codecov Report

Merging #37 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #37   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           4      4           
  Lines         152    158    +6     
  Branches       39     41    +2     
=====================================
+ Hits          152    158    +6

Impacted Files	Coverage Δ
src/matchers.js	100% <100%> (ø)	⬆️

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[kentcdodds]

Looks super! Thanks!

[kentcdodds]

Actually, would you like to add documentation for this feature?

[kentcdodds]

Thanks so much for your help! I've added you as a collaborator on the project. Please make sure that you review the other/MAINTAINING.md and CONTRIBUTING.md files (specifically the bit about the commit messages and the git hooks) and familiarize yourself with the code of conduct (we're using the contributor covenant). You might also want to watch the repo to be notified when someone files an issue/PR. Please continue to make PRs as you feel the need (you can make your branches directly on the repo rather than your fork if you want). Thanks! And welcome to the team :)

[Ailrun]

@kentcdodds Oh, I missed that. Thank you for notifying me! I will add it after busy days...