Add `.to_std()`

[RustyNova016]

This crate is pretty great! ... Until you need to pass the path to File::open()...
Could we have a conversion function that convert any path back into an std PathBuf?

For my use case I did a quick hack that is good enough, but I'm not versed in all the filesystem pitfalls that can happen, so an actual proper function would be nice

use core::str::FromStr;
use std::path::PathBuf;

use typed_path::WindowsPath;

#[extend::ext]
pub impl WindowsPath {
    fn to_std(&self) -> PathBuf {
        PathBuf::from_str(self.to_str().unwrap()).unwrap()
    }
}

[chipsenkbeil]

@RustyNova016 seems like this is the same ask as #28, right?

[RustyNova016]

I'm actually wanting the reverse! Going from a typed-path to std

But #28 is also great to have