zvibazak

Error when setting traffic_class on IPv6Header

1

We found an error when setting `self.traffic_class` on `IPv6Header` when `self.flow_label` is greater then 2 bytes. I added a shift-right by 16 and it fixed.

Support **WinDivert 1.4** Thanks! From [change log](https://www.reqrypt.org/windivert-changelog.txt): **WinDivert 1.4.0-rc** - Add a new WINDIVERT_PARAM_QUEUE_SIZE parameter that can be used to control the maximum number of bytes used by the packet...