ModelTransformer and ViewTransformer support

[Hricer]

issue #31

I added support for ModelTransformer and ViewTransformer

$builder->addDependent('operator', ['filter'], static function (DependentField $field, ?BudgetFilter $budgetFilter): void {
     $field
         ->add(EnumType::class, [])
         ->addModelTransformer(new MyTransformer());
});

@bocharsky-bw