- ArrayOf errors now catched in EntityTrait (event soon to be attached to it)

- Fixed some non-nullable defaulted to null vars in functions
- Added a new diff method for entities which skips nullable values if they are not defined.

src/Entity/ArrayCollection.php

@@ -6,7 +6,6 @@ use Ulmus\EntityCollection;
 
 class ArrayCollection extends EntityCollection implements JsonUnserializable
 {
-
     public function jsonUnserialize(array $json): void
     {
         $this->fromArray($json);