Håvard Sørbø

Native macOS builds

5

DO NOT MERGE. I'm exploring getting picsimlab up and running natively on macOS. Everything here is experimental / prototyping.

[class_getName](https://developer.apple.com/documentation/objectivec/1418635-class_getname) returns mangled names if class is Swift. This PR will try to demangle the class using `swift_demangle` if available.

This allows for class_getName to fail and be gracefully handled by objc-bridge. Swift versions prior to 5.10 had an issue causing the process to crash when attempting to resolve names...