Add X13 WebP module for image conversion to next-generation formats

- Implemented the X13Webp class with core functionalities for converting images to WebP format.
- Added support for different PHP versions and defined constants for versioning.
- Included translation strings for various user interface elements and messages.
- Created XML file for module versioning.

modules/x13webp/override/classes/ImageManager.php

@@ -0,0 +1,13 @@
+<?php
+
+class ImageManager extends ImageManagerCore {
+
+    public static function resize($src_file, $dst_file, $dst_width = null, $dst_height = null, $file_type = 'jpg', $force_type = false, &$error = 0, &$targetWidth = null, &$targetHeight = null, $quality = 5, &$sourceWidth = null, &$sourceHeight = null){
+
+        $parent = parent::resize($src_file, $dst_file, $dst_width, $dst_height, $file_type, $force_type, $error, $targetWidth, $targetHeight, $quality, $sourceWidth, $sourceHeight);
+        Hook::exec('actionOnImageResizeAfter', ['dst_file' => $dst_file, 'file_type' => $file_type]);
+        return $parent;
+
+    }
+
+}

modules/x13webp/override/classes/controller/FrontController.php

@@ -0,0 +1,17 @@
+<?php
+
+class FrontController extends FrontControllerCore
+{
+
+    public function smartyOutputContent($content)
+    {
+        ob_start();
+        parent::smartyOutputContent($content);
+        $html = ob_get_contents();
+        ob_clean();
+        Hook::exec('actionOutputHTMLBefore', array('html' => &$html));
+        echo $html;
+    }
+
+}
+