Demonstrate how to mutate message body via plugin

[JoshLove-msft]

trafficstars

Ok I think we can take this as feedback to add samples demonstrating how one would mutate the message body in a plugin.

Originally posted by @JoshLove-msft in https://github.com/Azure/azure-sdk-for-net/issues/12943#issuecomment-1090902140

[azure-sdk]

Label prediction was below confidence level 0.6 for Model:ServiceLabels: 'Service Bus:0.5954738,EngSys:0.1141093,Storage:0.06912118'

[azure-sdk]

Label prediction was below confidence level 0.6 for Model:ServiceLabels: 'Service Bus:0.5954738,EngSys:0.1141093,Storage:0.06912118'

[SeanFeldman]

Any updates?

[JoshLove-msft]

Any updates?

I've added this to the November milestone.

[jsquire]

This is covered by the claims check example. Closing this out.