[Feature Request] Webhook support

[hollanbm]

add support for WebHooks

• stand up HTTP server, to receive webook payload when sonarr grabs a file.
• store episode information in database
• when job runs, remove episodes from table which have title set

This will further reduce the number of calls to the TVDB, as it will only fetch and poll the TVDB for episodes which have been grabbed. Eliminating the HOURS_BEFORE_AIR setting

[zhdenny]

Look forward to seeing the Webhook feature working.

Then this is really a great "autoscan"-ish service I might dig