Gives ANSI path to curl CURLOPT_CAINFO

[RipleyTom]

Roundabout way of getting ansi path out of utf-8 path but tested and it works.
This should fixes issues where Problem with the SSL CA cert (path? access rights?) error was reported.

[Nekotekina]

There is another problem, GetEmuDir returns some variable configured by the user. I recommend using GetModuleFileNameW(nullptr...) to get actual rpcs3.exe path and cut it.

[Megamouse]

And also put that ansi conversion into some util function

[RipleyTom]

Isn't using GetEmuDir() fine? I thought that variable was there specifically if you want to use another directory than the one where the .exe is as a "home" directory.

[Nekotekina]

It's legacy variable for VFS paths prefixes. You can change it, but certificates won't be there.