[request] option to tell windows that hardware clock is UTC time

[kzshantonu]

Useful for people who will dual boot Linux later

[cschneegans]

I use the

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001

registry value myself, but I don't think it justifies a dedicated setting in the generator. Please use a custom script instead.