Introduce otp formats

[erdemkeren]

As a developer, I want to extend the format used by the OtpService without modifying the existing classes so that I can introduce my custom name, generator, template and, notification as a group.

For example:

use Erdemkeren\Otp\OtpToken;
use \Erdemkeren\Otp\OtpFacade as Otp;
use \Erdemkeren\Otp\GenericFormat;
use App\OtpFormats\AcmeFormat\AcmeFormat;

Otp::addFormat(new AcmeFormat());

// Or on the fly:

Otp::addFormat(new GenericFormat(
    'acme',
    fn(): string => ':generator:',
    fn(OtpToken $otpToken): TokenNotification => new TokenNotification($token),
));