Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Move the source code for these two modules out of src/sys/modules.

Move adding -DPC98 to CFLAGS from each modules to sys/modules/Makefile.inc.

Drop <bsd.man.mk> support from <bsd.kmod.mk>.

Not objected to by: -current

Use a consistent style and one much closer to the rest of /usr/src

Use .include <bsd.kmod.mk> to get to ../../*/conf/kmod.mk instead of
encoding the relative path.

Pull in sys/conf/kmod.mk, rather than /usr/share/mk/bsd.kmod.mk.
This means that the kernel can be totally self contained now and is not
dependent on the last buildworld to update /usr/share/mk. This might
also make it easier to build 5.x kernels on 4.0 boxes etc, assuming
gensetdefs and config(8) are updated.

Added PC-98 supports.

Submitted by: Chiharu Shibata <chi@bd.mbn.or.jp>,
Tomokazu HARADA <tkhara@osk4.3web.ne.jp> and
yokota

$Id$ -> $FreeBSD$

Add splash screen module. This version has rather limited
capabilities, but should be a good start... Well, sort of.

It can handle W*ndows 256 color BMP file. (Other color depth probably
won't work.) The size of the image must be 320x200 or less. *sigh*