Also started support for monochrome low-res -- displays bit patters at
the minute so not what we want, but luminance was added to the colors.
Signed-off-by: Michel Pollet <buserror@gmail.com>
These are fetched often, so might as well cache them into a bitfield,
also removed the old BSR state, as it might as well be in that bitfield.
Converted all the user of these soft switches to this new bitfield.
Signed-off-by: Michel Pollet <buserror@gmail.com>