Enable generate display name config

[sann3]

Generate more readable names in the test report by replacing underscores in the original rule names by space

[hankem]

Thanks for your PR!

Note that this repository is an autogenerated version of the latest released version of https://github.com/TNG/ArchUnit/tree/main/archunit-example (cf. https://github.com/TNG/ArchUnit-Examples/#regarding-issues), so I believe that your PR should target these files instead:

• https://github.com/TNG/ArchUnit/blob/main/archunit-example/example-plain/src/test/resources/archunit.properties
• https://github.com/TNG/ArchUnit/blob/main/archunit-example/example-junit4/src/test/resources/archunit.properties
• https://github.com/TNG/ArchUnit/blob/main/archunit-example/example-junit5/src/test/resources/archunit.properties

Also, please note that commits should be signed off according to the DCO to certify that you wrote it or otherwise have the right to pass it on as an open-source patch (cf. https://github.com/TNG/ArchUnit/blob/main/CONTRIBUTING.md).