Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

lib: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Convert files to UTF-8 and add some copyright markers where missing.

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.

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

Fix typo in the BSD copyright: s/withough/without/

Spotted and suggested by: des
MFC after: 3 weeks

Implement __FBSDID()

Minor fixes:
- Use "OPOST | ONLCR" as a c_oflag in the raw mode instead of 0, which should
make debug output mode readable;
- flush input buffer when switching to/from raw mode. This should prevent
leaking raw scancodes into your shell prompt when program called
VGLKeyboardEnd() w/o processing all scancodes in the buffer.

Initiate deorbit burn sequence for <machine/console.h>.

Replace all in-tree uses with necessary subset of <sys/{fb,kb,cons}io.h>.
This is also the appropriate fix for exo-tree sources.

Put warnings in <machine/console.h> to discourage use.
November 15th 2000 the warnings will be converted to errors.
January 15th 2001 the <machine/console.h> files will be removed.

$Id$ -> $FreeBSD$

Assorted bug fixes.

keyboard.c
- Call tcsetattr() in VGLKeyboardEnd() to restore tty, only when
tty attributes have been previously saved.
PR: misc/9524
Submitted by: Katusyuki 'kei' Maeda (kei@nanet.co.jp)
- Set up the tty raw mode correctly.

main.c
- Restore VESA_800x600 raster text mode correctly in VGLEnd().
Submitted by: des

text.c
- Allocate the correct size of a font buffer in VGLSetFontFile().
I forgot the submitter ;-(

simple.c, bitmap.c
- Fix address calculation for the VGA mode X in VGLGetXY() and
VGLBitmapCopy().
- Fix typo (dsty -> dstx) in __VGLBitmapCopy().

Reviewed by: sos

Add rudimentary support for using the keyboard.