fs: add ignore option to fs.watch

[mcollina]

Add an ignore option to fs.watch() to filter filesystem events.

Type: string | RegExp | Function | Array<string | RegExp | Function>

fs.watch(dir, { ignore: '*.log' });
fs.watch(dir, { ignore: /\.tmp$/ });
fs.watch(dir, { ignore: (f) => f.startsWith('.') });
fs.watch(dir, { ignore: ['*.log', /\.tmp$/] });

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.53%. Comparing base (637bda0) to head (cbcd51e).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #61433      +/-   ##
==========================================
+ Coverage   88.51%   88.53%   +0.02%     
==========================================
  Files         704      704              
  Lines      208883   209004     +121     
  Branches    40334    40371      +37     
==========================================
+ Hits       184890   185049     +159     
+ Misses      15977    15928      -49     
- Partials     8016     8027      +11     

Files with missing lines	Coverage Δ
lib/fs.js	98.19% <100.00%> (+<0.01%)	⬆️
lib/internal/fs/recursive_watch.js	85.01% <100.00%> (+0.65%)	⬆️
lib/internal/fs/watchers.js	87.37% <100.00%> (+2.20%)	⬆️
lib/internal/validators.js	98.25% <100.00%> (+0.09%)	⬆️

... and 36 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/70890/