64 bit player?

[kode54]

I've attempted to port the player to macho64, and it plays, but it has some glitches here and there.

My attempt is part of porting the the-emoji-demo to 64 bit, so it will live on on current and future macs, at least until they decide to pull another architecture swap on us.

kode54/the-emoji-demo@a9f61edd6b7510b267ce6f0b39913e1a82fccc27