IBX-9328: Added the users_group_root_subtree_path config parameter (#594)

For more details see https://issues.ibexa.co/browse/IBX-9328 and #594

Key changes:

* Added the `users_group_root_subtree_path` config parameter

Author: barw4

src/bundle/Core/DependencyInjection/Configuration/Parser/Common.php

@@ -130,6 +130,11 @@ public function addSemanticConfig(NodeBuilder $nodeBuilder)
                 ->example('10')
                 ->info('The ID of the user used for everyone who is not logged in.')
             ->end()
+            ->scalarNode('users_group_root_subtree_path')
+                ->cannotBeEmpty()
+                ->example('/1/5')
+                ->info('The subtree path of root users group.')
+            ->end()
             ->arrayNode('user')
                 ->children()
                     ->scalarNode('layout')

src/bundle/Core/Resources/config/default_settings.yml

@@ -98,6 +98,7 @@ parameters:
     ibexa.site_access.config.default.binary_dir: "original"
     ibexa.site_access.config.default.anonymous_user_id: 10            # The ID of the user to be used for everyone who is not logged in
     ibexa.site_access.config.default.user_content_type_identifier: ['user']
+    ibexa.site_access.config.default.users_group_root_subtree_path: '/1/5'
     ibexa.site_access.config.default.api_keys: { google_maps: ~ }     # Google Maps APIs v3 key (https://developers.google.com/maps/documentation/javascript/get-api-key)
 
     # IO