Features/asan sync

[R9295]

This adds support for address sanitizer in fuzz and run with --asan
Adding foreign fuzzer syncing explicitly since we cannot use --afl-flags for this. The flags are given to all afl instances and only -M instances can use -F

[R9295]

before we merge - I think this is instrumenting ASAN too since ASAN is statically compiled into the binary :/
maybe we can add a AFL_LLVM_DENYLIST but then we need to force the usage of AFL++ plugins

[louismerlin]

Haha interesting. If you're not able to do it quickly, let's merge anyways.

Same problem in the libafl branch, the libafl codebase itself is instrumented at build-time 🙃

[louismerlin]

@R9295 can you please investigate the test failure too?

[R9295]

@louismerlin it was cause of a bad conditional and honggfuzz wasn't building. I think that was the issue