* Shorten internal component names for graph
The long `IntegrationContextUtils.ERROR_LOGGER_BEAN_NAME` name
is used for `errorChannel` `LoggingHandler`'s endpoint.
It is too long for endpoint node in the graph meanwhile the
`errorChannel` is good everywhere
* Change an `IntegrationGraphServer` logic to shorten internal
component names before drawing a graph
* Introduce `IntegrationUtils.obtainComponentName()` for
shortening an internal name if any
* Use `IntegrationConfigUtils.BASE_PACKAGE` in the `IntegrationMBeanExporter`
instead of its own static property
* Remove `IntegrationConfigUtils.FACTORY_BEAN_OBJECT_TYPE` in favor
of introduced in SF `FactoryBean.OBJECT_TYPE_ATTRIBUTE`
* Rework affected test classes to JUnit 5
* Remove usage of deprecated options in the `@EnableIntegrationManagement`
* Document names shortening feature for graph
* * Improve `obtainComponentName()` function
fab7741368