add endoint /api/1.0/search.json?q=xxx with fake data

See https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/136

src/Bundle/ChillThirdPartyBundle/Serializer/Normalizer/ThirdPartyNormalizer.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Chill\ThirdPartyBundle\Serializer\Normalizer;
+
+use Chill\ThirdPartyBundle\Entity\ThirdParty;
+use Symfony\Component\Serializer\Normalizer\NormalizerAwareInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerAwareTrait;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+
+class ThirdPartyNormalizer implements NormalizerInterface, NormalizerAwareInterface
+{
+    use NormalizerAwareTrait;
+
+    public function normalize($thirdParty, string $format = null, array $context = [])
+    {
+        /** @var $thirdParty ThirdParty */
+        $data['type'] = 'thirdparty';
+        // TODO should be replaced by a "render entity"
+        $data['text'] = $thirdParty->getName();
+        $data['thirdparty_id'] = $thirdParty->getId();
+        $data['address'] = $this->normalizer->normalize($thirdParty->getAddress(), $format,
+            [ 'address_rendering' => 'short' ]);
+
+        return $data;
+    }
+
+    public function supportsNormalization($data, string $format = null)
+    {
+        return $data instanceof ThirdParty;
+    }
+}