Rework tests structure. Upgrade codeception to 2.5.3. Merge params configuration into app configuration.

console/config/config.php

@@ -1,15 +1,9 @@
 <?php
-$params = array_merge(
-    require __DIR__ . '/../../common/config/params.php',
-    require __DIR__ . '/params.php'
-);
-
 return [
     'id' => 'accounts-console',
     'basePath' => dirname(__DIR__),
     'bootstrap' => ['log', 'queue'],
     'controllerNamespace' => 'console\controllers',
-    'params' => $params,
     'components' => [
         'log' => [
             'targets' => [