Create a Jupiter extension that will automagically reset the Logback logging system

[sleberknight]

Note that this depends on completion of #460

From a comment in #457:

In addition, we could also create a Jupiter extension that would automagically reset the Logback logging system assuming the default logback-test.xml (and maybe if that isn't found it falls back to logback.xml. For example:

@ExtendWith(ResetLogbackLoggingExtension.class)
class MyTest {
    // ...
}

And if there is a need to customize the logging configuration, then it could be registered programmatically:

class MyTest {

    @RegisterExtension
    static final ResetLogbackLoggingExtension resetLogbackExtension =
            ResetLogbackLoggingExtension.builder()
                .withLoggingConfiguration("my-custom-test-logback-config.xml")
                .build()
    // ...
}

The extension would reset Logback after all tests have run, e.g. in a @AfterAll.

Originally posted by @sleberknight in #457 (comment)