This implements handling of HTTP status code 308 ([Permanant Redirect](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/308)) in wininet/winhttp. I added handling at all places I could find, but could only test the one in `dlls/wininet/http.c` with the program where it failed (Marvel Heroes).
I tried to keep the implementation parallel to 307, since they serve a similar purpose (redirect while keeping the request intact).
PS: `case` labels are sometimes in different order, would it be a good idea to sort them in numerical HTTP status order while I'm at it?
-- v3: urlmon: Handle HTTP status code 308 (Permanent Redirect) winhttp: Handle HTTP status code 308 (Permanent Redirect) wininet: Handle HTTP status code 308 (Permanent Redirect)