scoper should copy file permissions

[avdv]

Bug report

Question	Answer
PHP-Scoper version	0.14.0
PHP version	7.4.16
Platform with version	Alpine Linux 3.13.2

Scoper does not preserve file permissions when copying. I observed this for script files which are used in composer config:

$ ls -lh bin
-rwxrwxr-x    1 root     root        2.8K Mar 15 20:31 post-install-update.sh
-rwxrwxr-x    1 root     root        1.2K Mar 15 20:31 scoper-fix-autoloader.php
$ php-scoper add-prefix
    ____  __  ______     _____
   / __ \/ / / / __ \   / ___/_________  ____  ___  _____
  / /_/ / /_/ / /_/ /   \__ \/ ___/ __ \/ __ \/ _ \/ ___/
 / ____/ __  / ____/   ___/ / /__/ /_/ / /_/ /  __/ /
/_/   /_/ /_/_/       /____/\___/\____/ .___/\___/_/
                                     /_/

PHP Scoper version 0.14.0 2020-12-21 14:36:07 UTC

 3215/3215 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%

                                                                                                                        
 [OK] Successfully prefixed 3215 files.                                                                                 
                                                                                                                        

 // Memory usage: 31.77MB (peak: 49.64MB), time: 14.78s                                                                 


$ ls -lh build/bin/
total 8K     
-rw-r--r--    1 root     root        2.8K Mar 15 20:49 post-install-update.sh
-rw-r--r--    1 root     root        1.2K Mar 15 20:49 scoper-fix-autoloader.php

[theofidry]

Indeed, PR welcome!