This is an initial attempt at adding support for hilite_pet and
hilite_pile to the msdos tile implementation, using the new
decal.txt tiles.
This initial attempt only supports a 16-bit vesa mode.
Other vesa modes and vga have not been done as of yet.
Hopefully, someone more familiar with vesa might contribute
improvements and support of the other modes at some point.
nhmall
ff87463e47