Update Twig from 1.35.0 to 1.42.4 (PHP 5.5 is now required!)

This fixes some errors on PHP 7.4 and contains even more fixes
Also bumped PHP version to 5.5 as Twig requires it.

system/libs/Twig/Twig/Extension/Core.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\CoreExtension;
+
+class_exists('Twig\Extension\CoreExtension');
+
+if (\false) {
+    class Twig_Extension_Core extends CoreExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/Debug.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\DebugExtension;
+
+class_exists('Twig\Extension\DebugExtension');
+
+if (\false) {
+    class Twig_Extension_Debug extends DebugExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/Escaper.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\EscaperExtension;
+
+class_exists('Twig\Extension\EscaperExtension');
+
+if (\false) {
+    class Twig_Extension_Escaper extends EscaperExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/GlobalsInterface.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\GlobalsInterface;
+
+class_exists('Twig\Extension\GlobalsInterface');
+
+if (\false) {
+    class Twig_Extension_GlobalsInterface extends GlobalsInterface
+    {
+    }
+}

system/libs/Twig/Twig/Extension/InitRuntimeInterface.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\InitRuntimeInterface;
+
+class_exists('Twig\Extension\InitRuntimeInterface');
+
+if (\false) {
+    class Twig_Extension_InitRuntimeInterface extends InitRuntimeInterface
+    {
+    }
+}

system/libs/Twig/Twig/Extension/Optimizer.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\OptimizerExtension;
+
+class_exists('Twig\Extension\OptimizerExtension');
+
+if (\false) {
+    class Twig_Extension_Optimizer extends OptimizerExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/Profiler.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\ProfilerExtension;
+
+class_exists('Twig\Extension\ProfilerExtension');
+
+if (\false) {
+    class Twig_Extension_Profiler extends ProfilerExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/Sandbox.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\SandboxExtension;
+
+class_exists('Twig\Extension\SandboxExtension');
+
+if (\false) {
+    class Twig_Extension_Sandbox extends SandboxExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/Staging.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\StagingExtension;
+
+class_exists('Twig\Extension\StagingExtension');
+
+if (\false) {
+    class Twig_Extension_Staging extends StagingExtension
+    {
+    }
+}

system/libs/Twig/Twig/Extension/StringLoader.php

@@ -0,0 +1,11 @@
+<?php
+
+use Twig\Extension\StringLoaderExtension;
+
+class_exists('Twig\Extension\StringLoaderExtension');
+
+if (\false) {
+    class Twig_Extension_StringLoader extends StringLoaderExtension
+    {
+    }
+}