Add option to ignore storage folder structrue in added files

[pelmered]

When you add a file the directory structure of that file is kept in the resulting zip file.

For example if I want to add a file with the path path/to/my/file.png and I add it with $personalData->addFile('path/to/my/file.png', 'disk_name', 'images');, the file be saved in this location: temp-dir/images/path/to/my/file.png.
I want the file to end up in temp-dir/images/file.png and not reveal my directory structure in the export file.

Adding 'keep_directory_structure' => false, to the config file will add this behavior. Leaving it as true(the default) will keep the old behavior.

[freekmurze]

Thanks!