#110 add native wifi functions

[Ashok P. Nadkarni]

Is it possible to expose the Native Wifi Functions through the raw api interface?
esp. WlanScan, WlanGetNetworkBssList and WlanGetAvailableNetworkList
A list of all native wifi functions can be found here: http://msdn.microsoft.com/en-us/library/windows/desktop/ms706274%28v=VS.85%29.aspx

(migrated rfe)