[ros-svn] [hpoussin] 17244: Implement SetupDiGetSelectedDriverW/SetupDiSetSelectedDriverW

[hpoussin at svn.reactos.com]

Implement SetupDiGetSelectedDriverW/SetupDiSetSelectedDriverW
Define rank of a driver as in MSDN description
Fix comments in Flags/FlagsEx description
Factorise DeviceInfoElement structure creation in CreateDeviceInfoElement().


Updated files:
trunk/reactos/lib/setupapi/devinst.c
trunk/reactos/lib/setupapi/setupapi.spec