Add observability example

[jamesnetherton]

Thought it'd be good to add a little example project to demonstrate Camel Quarkus observability extensions:

• MicroProfile Health
• MicroProfile Metrics
• OpenTracing

[davsclaus]

James are you by any chance able to do this example this week, before thursday. I am going to give a Camel talk and would like to demo something like this

[jamesnetherton]

I'll try - I'm planning to make it similar to the existing Camel OpenTracing example with simple client / server apps. That should be enough to demo a realistic looking example of tracing.

[davsclaus]

Thanks, and if there are instructions how to use it, together with visual tools like jaeger then that is a great bonus