Add Nyxstone disassembler

[ekilmer]

Nyxstone: assembly / disassembly library based on LLVM, implemented in C++ with Rust and Python bindings, maintained by emproof.com

https://github.com/emproof-com/nyxstone

https://www.emproof.com/introducing-nyxstone-an-llvm-based-disassembly-framework/