Rewrite AFL++'s afl-fuzz in Rust as a front-end for LibAFL

LibAFL is a framework which pioneered the concept of modular fuzzers, where different parts of the fuzzer, such as the instrumentation, mutators, corpus and objectives can be swapped and configured to fuzz applications and platforms with diverse constraints. LibAFL re-uses and re-implements several parts of AFL++, it’s sister project, which is a fork of AFL and it’s community acclaimed successor. With LibAFL’s feature parity with AFL++ and it’s potential to succeed the project, this project aims to re-implement afl-fuzz, AFL++'s fuzzer implementation, in Rust, to become a front-end for LibAFL. Additionally, this initiative will attempt to implement missing features required by afl-fuzz to close the feature-gap between AFL++ and LibAFL.