[Intl] Fixed directory traversal in emoji compression tool

When using the compression tool, the emoji data is not compressed properly due to directory traversal issues. It only goes one level deep in the `data' directory.

Resources/bin/compress

@@ -17,8 +17,15 @@ if (!extension_loaded('zlib')) {
     throw new Exception('This script requires the zlib extension.');
 }
 
-foreach (glob(dirname(__DIR__).'/data/*/*.php') as $file) {
-    if ('meta.php' === basename($file)) {
+$iterator = new RecursiveIteratorIterator(
+    new RecursiveDirectoryIterator(
+        dirname(__DIR__).'/data',
+        FilesystemIterator::CURRENT_AS_FILEINFO | FilesystemIterator::SKIP_DOTS
+    )
+);
+
+foreach ($iterator as $file) {
+    if ('php' !== $file->getExtension() || 'meta.php' === $file->getFilename()) {
         continue;
     }