[tz] MSFT open-sourced CoreCLR, timezone bits inside

For anyone that is interested, Microsoft open-sourced the .NET CoreCLR: https://github.com/dotnet/coreclr Inside are the bits that read Microsoft's timezone data from the registry and provide the .NET interface: https://github.com/dotnet/coreclr/blob/master/src/mscorlib/src/System/TimeZo... -Andrew