* Obtain observed timers in the Integration Graph
The `Observation` populates slightly different Micrometer timer names and their tags
* Fix `MicrometerNodeEnhancer` to search timers in the registry according to the `Observation`
convention if the provided component is observed
* For that purpose expose an `IntegrationManagement.isObserved()` option to check
of component is instrumented with an `Observation`
* Improve the logic in the `IntegrationGraphServer` to delegate into a `Function`
to call `micrometerEnhancer.enhance()` instead of `static` property which might not
be OK in the environment where several integration applications are ran in the same JVM
* * Collect times into graph for inbound gateways & producers
* Fix language in javadoc of new `IntegrationManagement.isObserved()`
* Add `@Nullable` to `MicrometerNodeEnhancer.buildTimerStats()` param to satisfy this method contract
Co-authored-by: Gary Russell <grussell@vmware.com>
Co-authored-by: Gary Russell <grussell@vmware.com>
49a9b7e314