EZP-27429: Optional SiteAccessAware Repository layer (#2064)

* [REST] Forward BC to make sure all languages are loaded

* [Tests] Add testing of the SiteAccessAware Repository

* New SiteAccessAware Repository layer

Based on work done in ezsystems/ezpublish-kernel#1966

* Fix errror about missing class (loading order?)

* CS

* Add missing coreLoader in EzPublishCoreExtension

* Update PR

* Change ContentViewBuilder, Param Converters and relevant Twig helpers to use SiteAccessAware Repo

* fix review comments

* Remove RoleService which atm has no logic (re-add when we add prioritized languages there)

* Move LanguageResolver into own namespace and fix phpdoc to use FQCN

* Enable missing test coverage

* Update language args phpdoc on UrlAliasService

* [yml] Fixed wrong usage of inner_repository in siteaccessaware.repository

Repository/Tests/SetupFactory/Legacy.php

@@ -81,6 +81,10 @@ public function __construct()
             self::$dsn = 'sqlite://:memory:';
         }
 
+        if ($repositoryReference = getenv('REPOSITORY_SERVICE_ID')) {
+            $this->repositoryReference = $repositoryReference;
+        }
+
         self::$db = preg_replace('(^([a-z]+).*)', '\\1', self::$dsn);
 
         if (!isset(self::$ioRootDir)) {

Repository/Values/Content/Language.php

@@ -20,6 +20,11 @@
  */
 class Language extends ValueObject
 {
+    /**
+     * Constant for use in API's to specify that you want to load all languages.
+     */
+    const ALL = [];
+
     /**
      * The language id (auto generated).
      *