Move some product product\supplier and product\type::class methods into __get(), no functional changes

app/Models/Product/Generic.php

@@ -4,12 +4,11 @@ namespace App\Models\Product;
 
 use Illuminate\Support\Collection;
 
-use App\Interfaces\ProductItem;
 use App\Models\Invoice;
 use App\Models\Service\Generic as ServiceGeneric;
 use App\Models\Supplier\Generic as SupplierGeneric;
 
-final class Generic extends Type implements ProductItem
+final class Generic extends Type
 {
 	protected $table = 'product_generic';