Added link against iphlpapi for GetAdapterInfo (win32 only)
Added getMacAddr to lookup mac address associated with device.
Added lookup by description and name to main test
Added comments to EthernetDevInfo
Replaced memset with std::fill
Added sending of enumeration packed and loop for response
Implemented get_num_devices and get_device_serial
Testing up through init()
Linking test with dll rather than direct
Implemented EthernetControll::connect
Extended test to include connect_by_ID