Feature request: Extend M122 Pnnn to generate tests for all event types

[T3P3]

In order to test event handling macros it would be useful to have a P parameter, similar to M122 P109 that generates each of the event types. This could either be, for example P110 for filament-error P111 for driver-warning etc or MP110 S"driver-warning" etc Ideally the D, P,C parameters, if applicable, could be passed as well to specify the source and type of sub-event

[dc42]

Is https://docs.duet3d.com/User_manual/Reference/Gcodes#m957-raise-event not sufficient?

[T3P3]

Yes it is, I will make it more obvious in the event documentation that this feature exists.

[T3P3]

documentation updated