Add QDISC_BYPASS socket option for newer Kenerls to get speed increase

[jwbensley]

Add PACKET_QDISC BYPASS option to the socket for newer Kernel to skip the Kernel queuing disciplines for a performance increase.

For example:
https://github.com/jwbensley/EtherateMT/blob/master/etherate_mt.c#L135

[jwbensley]

Implemented in beta 0.12.