UNC and other DOS Device Paths unusable

The following logic:

cap-std/cap-primitives/src/windows/fs/get_path.rs

Lines 18 to 22 in 72fdc30

    
           let wide_final = if wide.starts_with(&['\\' as u16, '\\' as _, '?' as _, '\\' as _]) { 
        
               &wide[4..] 
        
           } else { 
        
               &wide 
        
           };

completely breaks DOS device UNC paths such as:

\\?\UNC\server\share\bar.exe

which would have to be translated to:

\\server\share\bar.exe

in addition to that, other DOS device paths such as:

\\?\Volume{b75e2c83-0000-0000-0000-602f00000000}\Test\Foo.txt

get completely ruined.

There also is a lack of \\.\ handling. I'm also not sure why this gets stripped in the first place, join can handle these paths just fine.

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	let wide_final = if wide.starts_with(&['\\' as u16, '\\' as _, '?' as _, '\\' as _]) {
	&wide[4..]
	} else {
	&wide
	};

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