memcpy vs memmove: memmove correctly handles overlapping source and destination memory buffers, but is slower than memcpy in many implementations. When memory buffers don't overlap, memcpy may be more efficient.

The DS2 SDK is such an implementation, so change many memmoves into memcpys.
When starting CATSFC, assume the backlights are both on, so don't delay 100 milliseconds and set both backlights to on.