Enable clang sanitizers

After successful integration with gherkin tests suite, we should consider enabling [clang sanitiziers](https://clang.llvm.org/docs/UsersManual.html#controlling-code-generation). F. e.:
- [AddressSanitizer](https://clang.llvm.org/docs/AddressSanitizer.html)
- [ThreadSanitizer](https://clang.llvm.org/docs/ThreadSanitizer.html)
- [MemorySanitizer](https://clang.llvm.org/docs/MemorySanitizer.html)