[FEATURE] Provide compatibility method for Extbase repositories

[eliashaeussler]

This PR provides a new compatibility method in AbstractDataProcessor. It can be used to reset the global ConfigurationManager that is responsible to e.g. resolve the storage PIDs defined in the current content element.

In order to use the new method, just call the initializeConfigurationManager() method in your data processor. Note: This method is only available in case your data processor extends the AbstractDataProcessor class.

 # Classes/DataProcessing/HeaderProcessor.php

 namespace Vendor\Extension\DataProcessing;

 use Fr\Typo3Handlebars\DataProcessing\AbstractDataProcessor;

 class HeaderProcessor extends AbstractDataProcessor
 {
     protected function render(): string
     {
+        $this->initializeConfigurationManager();
         $data = $this->provider->get($this->cObj->data);
         return $this->presenter->present($data);
     }
 }

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

100.0% Coverage
0.0% Duplication