MQE-654: Allow easy access to custom/extension attributes values in test

- Static check fixes
- composer.json requirement of goaop defined, was causing build failures.

Author: KevinBKozan

composer.json

@@ -21,6 +21,7 @@
         "sebastian/phpcpd": "~3.0",
         "brainmaestro/composer-git-hooks": "^2.3",
         "codeception/aspect-mock": "^2.0",
+        "goaop/framework": "2.1.2",
         "codacy/coverage": "^1.4",
         "phpmd/phpmd": "^2.6.0",
         "rregeer/phpunit-coverage-check": "^0.1.4"

src/Magento/FunctionalTestingFramework/DataGenerator/Persist/DataPersistenceHandler.php

@@ -237,13 +237,13 @@ private function convertToFlatArray($arrayIn, $rootKey = '')
      *          'attribute_code' => 'code1',
      *          'value' => 'value1',
      *      ],
-            1 => [
+     *      1 => [
      *          'attribute_code' => 'code2',
      *          'value' => 'value2',
      *      ],
      *  ]
      *
-     * to
+     * To
      *
      * 'custom_attributes' => [
      *      'code1' => 'value1',
@@ -256,12 +256,12 @@ private function convertToFlatArray($arrayIn, $rootKey = '')
     private function convertCustomAttributesArray($arrayIn)
     {
         $keys = ['custom_attributes'];
-        foreach($keys as $key) {
-            if(!array_key_exists($key, $arrayIn)) {
+        foreach ($keys as $key) {
+            if (!array_key_exists($key, $arrayIn)) {
                 continue;
             }
             $arrayCopy = $arrayIn[$key];
-            foreach($arrayCopy as $index => $attributes) {
+            foreach ($arrayCopy as $index => $attributes) {
                 $arrayIn[$key][$attributes['attribute_code']] = $attributes['value'];
             }
         }