feat: link person with structures

https://issues.unige.ch/browse/AOU-106

AoU-IntegrationTests/src/test/java/ch/unige/aou/test/admin/StructureAsUserIT.java

@@ -49,7 +49,7 @@ public class StructureAsUserIT extends AbstractAdminIT{
 
     final Structure structure = this.getPermanentStructure();
 
-    // Add the person to the Structure with role validator
+    // Add the person to the Structure with role user
     this.structureService.addPerson(structure.getResId(), myPerson.getResId(), Role.USER_ID);
 
     final Person personAdded = this.structureService.getPerson(structure.getResId(), myPerson.getResId());