Warnings for specific event routers should be suppressable

[OtoshigamiX]

Is your feature request related to a problem? Please describe.
I'm writing a bot which needs only access to DM messages, and using on_message_create with only default intents causes a warning to be printed out with each message received. DM messages can be read without this intent, so I'd want to suppress this warning.

Describe the solution you'd like
I would like to suppress warnings on event_handlers, ideally not every warning, but only those that I know that I can ignore.

Describe alternatives you've considered
Adding missing intent, but this requires additional perms for the bot, which won't be used for this particular bot

[braindigitalis]

now fixed in dev, will not emit the warning for DMs, thanks for the report!