65d816: some color changes

move to 16-color pallette, enhance color parsing
65816: color almost working
65c816: colors finally right

cheat and use hexadecimal instead of decimal
65816: logo looking better

still off by one with missing linefeeds
65c816: update conversion tool

now it includes linefeeds which are needed for linux_logo
65c816: fix font issue

now the penguin's eyes look right.  hex/decimal confusion bug
65c816: logo display works!