chg refactoring for new checkstyles

.gitlab-ci.yml

src/main/java/de/hda/fbi/db2/api/Lab01Data.java

src/main/java/de/hda/fbi/db2/api/Lab02EntityManager.java

src/main/java/de/hda/fbi/db2/api/Lab03Game.java

src/main/java/de/hda/fbi/db2/api/Lab04MassData.java

src/main/java/de/hda/fbi/db2/controller/Controller.java

src/main/java/de/hda/fbi/db2/controller/CsvDataReader.java

src/main/java/de/hda/fbi/db2/controller/MenuController.java

src/test/java/de/hda/fbi/db2/test/Lab01Test.java

src/test/java/de/hda/fbi/db2/test/Lab02Test.java

src/test/java/de/hda/fbi/db2/test/Lab03Test.java