package: move OpenBSM auditing into its own package

Move auditing runtime (auditd, etc.) into the new FreeBSD-audit package.
Also move the runtime OpenBSM manual pages from libbsm into auditd so
they get installed with the right package.

Add an UPDATING entry noting the new packages.

Reviewed by: imp, manu
Pull Request: https://github.com/freebsd/freebsd-src/pull/1197

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Move OpenBSM to CONFS

This helps with pkgbase as these config files will be properly tagged as
config files.

Approved by: allanjude (mentor), oshogbo
Differential Revision: https://reviews.freebsd.org/D16679

usr.sbin: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

MFC after: 1 month
Sponsored by: Dell EMC Isilon

Convert usr.sbin to LIBADD
Reduce overlinking

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

Fixed static linkage.

The last big commit: let usr.sbin/ use WARNS=6 by default.

- Import the HEAD csup code which is the basis for the cvsmode work.

Enable building of OpenBSM command line tools:

- audit(8) - audit subsystem management tool
- auditd(8) - audit trail and subsystem management daemon
- auditreduce(1) - audit trail reduction tool
- praudit(1) - audit trail printing tool

Could probably use a NO_AUDIT make.conf flag.

Obtained from: TrustedBSD Project