WL#9096 Add thread_prio to ThreadConfig, add cpubind_exclusive and cpuset_exclusive to ThreadConfig, add support for CPU locking on FreeBSD and Windows, add support for non-exclusive CPU locking on Solaris, add support for setting thread_prio on FreeBSD and Linux using setpriority, add support for setting thread prio on Windows, add support for setting thread_prio on Solaris using FX prio class. thread_prio set to 10 on Solaris gives FX60 which is interpreted by Solaris as meaning attempt to run thread on its own CPU core. Add support for realtime setting on Windows