wiasane: Fixed mixed indentation
wiasane: Reordered internal functions
wiasane: Fixed SAL annotations
wiasane: Optimized entry conditions
wiasane: Fixed inconsistent SAL annotations
wiasane: Optimized entry conditions
wiasane: Re-grouped registry information functions
wiasane: Renamed scanner session functions
winsane: Close device if open within deconstructor
wiasane: Added check for supported data types
wiasane: Decouple local WIA interface from the network connection

Another step to handle connection interruption. This step decouples
the local WIA interface from the network interface by handling most
of the WIA commands internally and locally.