Add fuzzing targets for snappy-java#721
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With this PR we will be fuzzing targets to enable continuous security testing via CIFuzz and OSS-Fuzz.
Summary
Files Added
.github/workflows/cifuzz.yml
src/test/java/org/xerial/snappy/fuzz/SnappyCombinedFuzzer.java
src/test/java/org/xerial/snappy/fuzz/BitShuffleFuzzer.java
src/test/java/org/xerial/snappy/fuzz/SnappyStreamFuzzer.java
Key Points
Minimal footprint: Only 3 fuzzers added to keep the codebase lean.
No build changes: Works seamlessly with the existing sbt build system.
CIFuzz ready: Includes a dedicated GitHub Actions workflow for automated testing.
Broad coverage: The combined fuzzer alone covers 8 different APIs.
All fuzzers currently compile successfully and are ready for integration.