Add Support for libFuzzer Test Target in Generated Test Directory

[avitase]

I would like to suggest adding support for libFuzzer in the generated test directory. While the current template includes dummy unit tests without relying on a specific testing framework, integrating a fuzz test target would be a valuable addition for projects that require robustness testing and input validation.

Feature request

• Add an optional CMake target for fuzz testing using libFuzzer
• The target should be conditionally enabled if the compiler supports fuzzing (-fsanitize=fuzzer,address for Clang and GCC (?)).
• Include a basic fuzzing example (e.g., fuzzing a simple string-processing function).
• Ensure that the fuzz test target integrates smoothly with existing CMake configurations and CI pipelines.