Always create proxy files for package binaries,
to avoid not working binaries in case the package
was installed from a path repository and is itself linked
If the binary is a PHP script, a global variable is now exposed,
which holds the path to the vendor/autoload.php file.
This variable can the be used in the binaries to include this file
without guessing where the path to the vendor folder might be.
Additionally it is now checked on binary creation whether
the reference binary has a shebang and if not, generates
a much simple proxy code, because the stream wrapper code,
that is required for PHP <8 to omit the shebang from the output,
can be skipped.
Fixes: #10119
Co-authored-by: Jordi Boggiano <j.boggiano@seld.be>
James Watts