declare colortable[] const and no longer static so it can be shared
by code in window ports..
get rid of the Windows console port rgbtable and use the
core colortable[] instead.
utilize function colortable_to_int32() in Windows console instead
of the rgbtable_to_long() in the Windows port.
delete the Windows rgbtable_to_long() function.
nhmall
15a9acbefb