Replace non-printable characters in display names in Jupiter and @SuiteDisplayName

[Pankraz76]

PoC for

• Replace ISO control characters in display names junit-team/junit-framework#4714

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Definition of Done

• There are no TODOs left in the code
• Method preconditions are checked and documented in the method's Javadoc
• Coding conventions (e.g. for logging) have been followed
• Change is covered by automated tests including corner cases, errors, and exception handling
• Public API has Javadoc and @API annotations
• Change is documented in the User Guide and Release Notes