EclaireXL has diverged a lot, use this for other platforms for now!
Retry SD init if it fails
Prepare interface for alternative version of mmc.c - for >1GB cards
Add titles. Load rom from sd.
Long firmname support. Several bugfixes, e.g. multi-drive support
First cut of write support
First cut of reworked firmware. Just runs gunpowder charlie.atr drive emulation!