PicoLisp: Include RAM optimization (miniCodeROM) code

Alcor6L now has a RAM optimization mode (optram=1). While
PicoLisp (miniPicoLisp) itself works with optimizations on
Mizar32, adding platform specific functions causes the
build to fail!

When I build PicoLisp with avr32-gcc for Mizar32, I can't
have long names like 'pd-platform' (which can't fit in a
PicoLisp cell). Well, I'll get to RO (like *tmr-sys-timer*),
immutable symbols later. I'll have to talk to Alex on that
one.

I'm now getting my beer. I'll get to the aforementioned
in a bit. Cheers PicoLisp and SimpleMachines!

R