new syscalls audit events

[Jack Halford]

>> 	- contrib/openbsm/etc/audit_event
>> 	- contrib/openbsm/sys/bsm/audit_kevents.h
>> 	- sys/bsm/audit_kevents.h
>
>These changes will need to be upstreamed to OpenBSM in GitHub. As there might be conflicting new events using the same numbers, do use the numbers assigned by OpenBSM rather than those that might appear most obvious in FreeBSD, as BSM is used across several operating systems, and we require consistent event-number assignment.
>
>> 	- sys/kern/syscalls.master
>> 	- sys/compat/freebsd32/syscalls.master
>
>You will also need to modify sys/security/audit_bsm_klib.c to generate BSM records and encode arguments/return values/etc.

Thanks for the reply, I'll look into upstreaming all this to github
before my review then. Likely after the holidays.

-- 
Jack