Handle BulkDeleteEvent

[thatmaxplayle]

Handle the bulk delete event, giving the opportunity to make a Purge Notification (even if the purge wasn't completed using maxbot)

This notification should be broadcast to the console channel in the related server, as well as the main maxbot console

[thatmaxplayle]

Handled. The following now happens:

• Informative output made in the server's console channel
• Informative output made into the console.

Handled as of 1.1.3! :)

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