Parsing dependencies recursevily

[AlessandroMinoccheri]

In this PR I changed how we parse files with their dependencies.
If we find a dependency, now we check also inside it other dependencies recursively.

Now the collection of ClassDescription has the responsibility to check rules because we need to get all the dependencies of the class to be checked.

[codecov-commenter]

Codecov Report

Merging #239 (537f3dc) into main (efc2ea8) will decrease coverage by 2.90%.
The diff coverage is 81.32%.

@@             Coverage Diff              @@
##               main     #239      +/-   ##
============================================
- Coverage     92.99%   90.09%   -2.91%     
- Complexity      315      384      +69     
============================================
  Files            52       54       +2     
  Lines           814      999     +185     
============================================
+ Hits            757      900     +143     
- Misses           57       99      +42     

Impacted Files	Coverage Δ
src/Analyzer/FileParser.php	75.26% <75.32%> (-9.92%)	⬇️
src/Analyzer/ClassDescriptionCollection.php	76.56% <76.56%> (ø)
src/Analyzer/FileVisitor.php	85.96% <77.77%> (-2.04%)	⬇️
src/Expression/ForClasses/NotExtend.php	82.35% <83.33%> (-3.37%)	⬇️
src/Analyzer/FileContentGetter.php	84.61% <84.61%> (ø)
src/CLI/Runner.php	94.28% <88.23%> (-1.37%)	⬇️
src/Expression/ForClasses/Extend.php	94.44% <92.85%> (+2.77%)	⬆️
src/Analyzer/ClassDescriptionBuilder.php	88.46% <100.00%> (ø)
src/Analyzer/FileParserFactory.php	100.00% <100.00%> (ø)
...ession/ForClasses/DependsOnlyOnTheseNamespaces.php	100.00% <100.00%> (ø)
... and 13 more

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[pfazzi]

La chiudiamo questa? È aperta da tempo immemore... :D