fgm/php__symfony__book: FGM's version of the code suggested in the SF4 book. @ d7bba5fb6f6e20643e85936f1ff03d906855d199

Frederic G. MARAND deeb7894a7 Ch. 2: profiler, twig.		%!s(int64=6) %!d(string=hai) anos
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routing.yaml	f8830b8a47 Initial commit: generated skeleton + composer require server.	%!s(int64=6) %!d(string=hai) anos
security_checker.yaml	954eaf1efd Ch. 1: Support annotated routes with composer require annotations.	%!s(int64=6) %!d(string=hai) anos
web_profiler.yaml	deeb7894a7 Ch. 2: profiler, twig.	%!s(int64=6) %!d(string=hai) anos