feat(locale): Galician locale

[PorkoBravo]

Added Galician locale

PR Checklist

• read and followed the CONTRIBUTING.md guide.
• built and tested the changes locally.
• added/updated tests.
• added/updated API documentation.
• added/updated demos.

[codecov]

Codecov Report

Merging #4246 into development will decrease coverage by 0.02%.
The diff coverage is 58.82%.

@@               Coverage Diff               @@
##           development    #4246      +/-   ##
===============================================
- Coverage        72.26%   72.24%   -0.03%     
===============================================
  Files              255      256       +1     
  Lines             8276     8293      +17     
  Branches          1582     1589       +7     
===============================================
+ Hits              5981     5991      +10     
- Misses            1872     1873       +1     
- Partials           423      429       +6

Impacted Files	Coverage Δ
src/locale.ts	100% <100%> (ø)	⬆️
src/chronos/i18n/gl.ts	56.25% <56.25%> (ø)
src/chronos/i18n/pl.ts	72.22% <0%> (-2.78%)	⬇️
src/chronos/i18n/uk.ts	80.48% <0%> (+2.43%)	⬆️

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[valorkin]

@QuinoBravo thanks for your help!

sorry for a delay, I were busy organizing https://ngtalks.io/

[PorkoBravo]

@valorkin thanks to you and the entire team!

sorry for a delay, I were busy organizing https://ngtalks.io/

Don't worry, it is for a good cause 😁