Add win.net.bond.* metrics for native nic teaming in Windows 2012+

Uses MSFT_NetAdapterStatisticsSettingData and MSFT_NetLbfoTeamNic WMI classes to add network stats for Windows team nics in Server 2012+
Still need to compare with linux.net.bond.* to see if I can add any other metrics, but wanted to start code review to see if there are any changes that should be made.
Also does not yet map to os.net.bond.*
I removed the note about the bug but best I can tell the speed is null. Testing on ny-web01 with:

    gwmi Win32_NetworkAdapter -filter "MACAddress <> null" | ft NetConnectionID,Speed,Macaddress

and 

    wmic NIC where macaddress!=null get NetConnectionID,speed

both result in the Speed for nic A-D (team members) being null/empty

    NetConnectionID     Speed
    NY-WEB01-PRI-NIC-C
    NY-WEB01-PRI-NIC-D
    NY-WEB01-PRI-NIC-B
    NY-WEB01-PRI-NIC-A
    NY-WEB01-PRI-TEAM   4000000000

I can open this a bug on the WMI repo if you want to investigate, but the code is currently working.