Add OtelJava.noop()

[fugafree]

This is about having one single method to be able to initiate a no-op OtelJava, by calling OtelJava.noop(). The method is already available for OpenTelemetrySdk, Meter, MeterProvider and so on, but does not exists yet for OtelJava. And since its constructor is private, no chance the create one easily.

[NthPortal]

@fugafree what's the use case specifically for a no-op OtelJava, rather than just using the noop implicits for Tracer and Meter? the primary issue with having a no-op OtelJava is that the LocalContext can't really be no-op.

Incidentally, you can always do: OtelJava.forAsync(JOpenTelemetry.noop())

[fugafree]

@NthPortal I left a note on the PR itself to have all ideas at one place.