Add an exmaple for how to implement one of the core service interfaces

src/MyCustomPersonProvider.php

+<?php
+
+
+namespace App;
+
+use DBP\API\CoreBundle\Entity\Person;
+use DBP\API\CoreBundle\Service\PersonProviderInterface;
+
+class MyCustomPersonProvider implements PersonProviderInterface
+{
+
+    public function getPersons(array $filters): array
+    {
+        // TODO: Implement getPersons() method.
+    }
+
+    public function getPersonsByNameAndBirthday(string $givenName, string $familyName, \DateTime $birthDay): array
+    {
+        // TODO: Implement getPersonsByNameAndBirthday() method.
+    }
+
+    public function getPerson(string $id, bool $full): Person
+    {
+        // TODO: Implement getPerson() method.
+    }
+
+    public function getCurrentPerson(): Person
+    {
+        // TODO: Implement getCurrentPerson() method.
+    }
+
+    public function getPersonForExternalService(string $service, string $serviceID): Person
+    {
+        // TODO: Implement getPersonForExternalService() method.
+    }
+}
\ No newline at end of file