Add support for formatter nested tag to the phpcs task

[kenguest]

Add support for formatter nested tag with type and outfile attributes to the phpcs task.
Documentation for same added as PR phingofficial/guide#36 of the guide repo

[codecov]

Codecov Report

Merging #1614 (3df2195) into main (b747fed) will increase coverage by 0.03%.
The diff coverage is 75.86%.

❗ Current head 3df2195 differs from pull request most recent head d53c573. Consider uploading reports for the commit d53c573 to get more accurate results

@@             Coverage Diff              @@
##               main    #1614      +/-   ##
============================================
+ Coverage     56.84%   56.87%   +0.03%     
- Complexity     6914     6927      +13     
============================================
  Files           354      355       +1     
  Lines         16748    16777      +29     
============================================
+ Hits           9520     9542      +22     
- Misses         7228     7235       +7     

Impacted Files	Coverage Δ
.../Phing/Task/Optional/PhpCSTaskFormatterElement.php	58.82% <58.82%> (ø)
src/Phing/Task/Optional/PhpCSTask.php	90.27% <100.00%> (+1.94%)	⬆️

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[siad007]

LGTM