Feature request: M117 events (and M300, M150)

[skvalen]

Hi, sending M117 (lcd message) events would be nice feature, and also M300 and M150 would be nice.

something like:
topic: octoPrint/event/M117
payload: {"message": "Hello World!"}

M300 - Play Tone
topic: octoPrint/event/M300
payload {"P": ms, "S": hz}

M150 - Set RGB(W) Color
topic: octoPrint/event/M150
payload: {"B": intensity, "I": index, "P": intensity, "R":intensity, "U": intensity, "W" intensity}

[RoboMagus]

Just came accross this issue when looking into something else.

Probably a dead topic, but I'll post this here anyway in case someone is looking for the same feature.
About a year ago I wrote a little plugin that could be used together with this one to achieve this goal: Custom GCode Events.

Having the MQTT plugin setting Activate event messages enabled, events produced by the mentioned plugin would be published on the specified topic.