kernel32: Add partial stub for NeedCurrentDirectoryForExePath

[Kirill K. Smirnov]

> - if (strchrW(name, '\'))
> -
>    return TRUE;
> What is the point of this?  You're returning TRUE no matter what anyway.
> - FIXME("(%s): stub!\n", debugstr_w(name));
> - return TRUE;

ancient patch in attach, sorry.