Feature: [docgen][person] add a new context to generate document with a

third party

This allow to prepare, for instance, mail (letters) to a thirdparty
about a Person

src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php

@@ -214,7 +214,7 @@ class ThirdParty implements TrackCreationInterface, TrackUpdateInterface
 
     /**
      * @ORM\Column(name="kind", type="string", length="20", options={"default": ""})
-     * @Groups({"write"})
+     * @Groups({"write", "docgen:read", "docgen:read:3party:parent"})
      */
     private ?string $kind = '';