xattr

We got lot of security issues in FCFileManager.m saying - Insecure Storage: Lacking Data Protection

Example:
[[((NSString *)content) dataUsingEncoding:NSUTF8StringEncoding] writeToFile:absolutePath atomically:YES];

There is a high probability that this library has some bugs/memory issues/etc. that may be hard to catch etc. It might be cool to rewrite it in Rust for bulletproofing. Although we don't use it anymore in SWM, this may be a cool exercise for some interested contributor, I'll be happy to mentor someone.

The reason why we did not go with Rust in the first place was that back in the days Rustler w