- Separate ENABLE_AFL into ENABLE_FUZZING and HAVE_AFL.
- Add the --disable-unicode flag required in the oss-fuzz container.
- Add checking of support for C++17.
- Make Kea compile with afl++.
- Rotate ports in `getServerPort()` functions under an env var.
- Fix some destruction issues that would result in crashes when fuzzing.
- Add some checks in the UnixControlClient that prevent some crashes when fuzzing.
- Add `isc::util::isSocket()` function.
- Change `isc::util::file::Path` to not append a trailing slash to allow
chained calls of `parentPath()`.
- Add `isc::util::file::TemporaryDirectory` useful when fuzzing.
