OEL-1147: Add NeutralFooterBlock extending from FooterBlockBase.

modules/oe_whitelabel_helper/src/Plugin/Block/NeutralFooterBlock.php

+<?php
+
+declare(strict_types = 1);
+
+namespace Drupal\oe_whitelabel_helper\Plugin\Block;
+
+use Drupal\Component\Utility\NestedArray;
+use Drupal\Core\Cache\CacheableMetadata;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\oe_corporate_blocks\Plugin\Block\FooterBlockBase;
+
+/**
+ * Provides the corporate EU footer block.
+ *
+ * @Block(
+ *   id = "oe_corporate_blocks_neutral_footer",
+ *   admin_label = @Translation("Neutral Footer block"),
+ *   category = @Translation("Corporate blocks"),
+ * )
+ */
+class NeutralFooterBlock extends FooterBlockBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function build() {
+    $cache = new CacheableMetadata();
+    $cache->addCacheContexts(['languages:language_interface']);
+
+    $config = $this->configFactory->get('oe_corporate_blocks.ec_data.footer');
+    $cache->addCacheableDependency($config);
+
+    $build['#theme'] = 'oe_corporate_blocks_neutral_footer';
+
+    NestedArray::setValue($build, ['#corporate_footer', 'content_owner_details'], $config->get('content_owner_details'));
+
+    $this->setSiteSpecificFooter($build, $cache);
+
+    $cache->applyTo($build);
+
+    return $build;
+  }
+
+}