o Rename bitblt method to bitbltchr, since it used to copy char with bg/fg colors
from font table, but not bitmap copy.
o Fix small mistake in comment.

Sponsored by:	The FreeBSD Foundation
Rename bitblt method to bitbltchr.

Sponsored by:	The FreeBSD Foundation
Rename bitblt method to bitbltchr.

Sponsored by:	The FreeBSD Foundation
Add helper to generate color map.

Sponsored by:	The FreeBSD Foundation
Enable vt_termcolors.c to build with vt(9).

Sponsored by:	The FreeBSD Foundation
Use generated color map.

Sponsored by:	The FreeBSD Foundation
Partially revert accidentally committed #if from r256528.

Sponsored by:	The FreeBSD Foundation
Use generated color map.

Sponsored by:	The FreeBSD Foundation
Don't forget to include colors/vt_termcolors.h too.

Sponsored by:	The FreeBSD Foundation
Swap Red and Blue (too much red in dialog(1)).

Sponsored by:	The FreeBSD Foundation
Sync with ofw_syscons.c: provide support for IBM framebuffers like that in
the QEMU pSeries emulated platform.
Use vt_generate_vga_palette() instead of a hard-coded mapping.