general timing hacks
cd: tweak the poll code further
fix blank line increment
minor formatting changes
improve cue handling a bit
handle dbra wait loops, update cyclone
drz80: don't use swp

swp is not available and sometimes emulated on newer ARMs
on older ARMs it does some bus locking that we don't need
cd: delay gfx ops again
handle 32x+cd
cd: better cd change handling, perhaps?
cd: rewrite pcm
cd: fix yet more desyncs

state load, reset..
cd: pull in Genesis-Plus-GX CD gfx code

license is the same, code quality is much better, so why not?
Many thanks to Eke for writing it.
cd: integrate new gfx code
cd: gfx: reduce LUT size
cd: pcm: tune addr reload

fahrenheit..
cd: fix copy-paste bug, comm issue
pandora: use automatic tv layer switch
famec: remove unused dual code
cd: prefer model2 bios

model1 has some weird random race, hopefully it will go away with better
cdc/cdd code in future.