WhatsApp Channel support

[aalbarca]

@atymic #146

If someone does not want to wait it's also available in https://github.com/netflie/laravel-notification-whatsapp

[aalbarca]

@atymic @mpociot @freekmurze please abandon this repository if you have no intention of accepting PRs. Thanks.

[clod986]

@aalbarca do we have any news on this?

[aalbarca]

@aalbarca do we have any news on this?

You can download it here https://github.com/netflie/laravel-notification-whatsapp