Get rid of a couple of copies of the CC0 text. Add header comment to
CC0 files to remind people editing them what the terms are. Also add
some missing XML headers. The header comments in layouts won't bloat
the binary - they get stripped out before compressing, same as any other
comments.
we were emulating) and added support for the bankswitch mechanism used
by the final revision. nw.
(some work is still needed before promoting the two carts to working state)
their carts. this allows to remove on-cart RAM from the driver class (since it
does not belong there). also added (partial) support for Channel F multicart.
nw.
