Support listing entries without password

[thekid]

This pull request defers veryfying a password is set and is correct until actually extracting a file. As long as the entries' input streams are not accessed via in(), everything works without supplying passwords.

use io\archive\zip\ZipFile;
use util\cmd\Console;

$zip= ZipFile::open($argv[1]);
foreach ($zip->entries() as $entry) {
  Console::writeLine($entry);

  // Here we would get a "password missing" exception:
  // Console::writeLine($entry->in()); 
}
$zip->close();

[thekid]

Released in https://github.com/xp-framework/zip/releases/tag/v11.3.0