Add Java Flight Recorder event for JaxRS requests.

[whitingjr]

Add Flight Recorder event.

[ruhan1]

Do we also call FlightRecorder.register(JaxRSEvent.class) somewhere? I see some doc said so.

[whitingjr]

Do we also call FlightRecorder.register(JaxRSEvent.class) somewhere? I see some doc said so.

I'll add a class to register the event on Startup.

[whitingjr]

I was wondering if you had any Exception Handler plan ?
The FlightRecorderFilter is sensitive to having a JaxRS Exception Handler configured. Without it then when an unhandled exception is thrown then ContainerResponseFilter.filter is not called. The event is never committed.
What I'll do is add handlers to make the application robust for these events.

[ruhan1]

wrt exception handlers, I guess there is sth by default? sometimes I see when exception occurs, the gateway handles it quite well. anyway, this pr looks good and I'll merge it. thanks.

[whitingjr]

I read that dev mode in quarkus causes the exception to be handled. Whereas running normally means an exception is handled by a configured ExceptionMapper or not (ugly stacktrace).