.SCP files usage in WinUAE

[keirf]

This is true, the UAE support will already work well for multi-revolution dumps as most protection checks are only across a few spins of the track. But I plan to add support for single-rev dumps and also for protections which check many more spins of the track. Purely by randomising bitcells at the edge of the timing window, or during long period of no flux.