Add support for SO_REUSEPORT
This CCC is submitted on behalf of Intel.
A long standing request is support for the SO_REUSEPORT socket option. This socket option is subtly different to SO_REUSEADDR in that allows a number of sockets to be bound to the same address and port.
Many high performance HTTP servers on Linux and BSD use SO_REUSEPORT, something that Java servers can't do without resorting to native code.
Add optional support for SO_REUSEPORT
See attached specdiffs