refactor!: Replace p libs with native JS APIs

[breautek]

Platforms affected

CLI

Motivation and Context

Modernizing the codebase to remove third-party dependencies

Description

• Replaced p libs with native promises
• Use async/await keywords and removed temporarily placed wrapper code
• Added commands test spec with a mocked plugman (testing the actual plugman cordova-lib API is cordova-lib's job).

Marked as a breaking change due to the introduction of async syntax. Current engines should be already a satisfied based on these new requirements.

62d7e6a is a missed artifact from #175

I included as its own commit in this PR for simplicity but if necessary I can split it into its own PR.

Testing

Ran npm test

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.92%. Comparing base (5ba1d3a) to head (62d7e6a).

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #197       +/-   ##
===========================================
+ Coverage   59.15%   82.92%   +23.77%     
===========================================
  Files           5        5               
  Lines          71       82       +11     
===========================================
+ Hits           42       68       +26     
+ Misses         29       14       -15     

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[erisu]

Overall, it LGTM.

If you can figure out a way to avoid using rewire, that would be even better. Since there are only two test files, I was hoping we could eventually drop rewire and Jasmine in favor of Node's built-in test framework, but that could also be revisited in a separate PR.

[breautek]

If you can figure out a way to avoid using rewire, that would be even better. Since there are only two test files, I was hoping we could eventually drop rewire and Jasmine in favor of Node's built-in test framework, but that could also be revisited in a separate PR.

Probably could be done but I'll try it in a separate PR and I'll create an issue for myself to serve as a reminder.