v4.2.0: Enum validation

• Feature: Added basic support for enum validation

use EvoWpRestRegistration\Rule;

protected function rules()
{
    return [
        'type' => ['sometimes','required',Rule::enum(ProductTypeEnum::class)],
    ];
}

Note that you must use a rules function to define your rules rather than a simple array.

Backed enums only are supported for the time being.