Setup django-helpdesk

[kchudy]

• Setup django-helpdesk to create tickets based on support emails from customers.
• Use the existing licence service django instance? https://django-helpdesk.readthedocs.io/en/v1.5.0/install.html
• Setup email integration: cron job that checks support@defguard.net and creates tickets based on support emails from customers https://django-helpdesk.readthedocs.io/en/v1.5.0/configuration.html
• Setup auto-reply message to new tickets
• Send message to private support channel on element on new ticket https://django-helpdesk.readthedocs.io/en/v1.5.0/webhooks.html#registering-webhooks-to-be-notified-of-helpesk-events