WFS: Use a separate log type for WFS related logs

Makes it easier to turn off general IOS messages that can be
distracting (e.g. /dev/net/ssl being opened hundreds of time...)
without losing the ability to view WFS messages.

Source/Core/Common/Logging/Log.h

@@ -38,6 +38,7 @@ enum LOG_TYPE
   IOS_STM,
   IOS_USB,
   IOS_WC24,
+  IOS_WFS,
   IOS_WIIMOTE,
   MASTER_LOG,
   MEMMAP,