This allows me to use a script to automatically fill the bsnes debugger
with breakpoints. For instance, the following bash line:
bsnes --show-debugger `grep BREAKPOINT "$symfile" | awk '{print "-b " $1 ":x"}'` "$romfile"
Will open the debugger window and create a CPUBus execute breakpoint
for all symbols containing BREAKPOINT in the symbol file.
See `bsnes --help` or `Application::printArguments` for the format of
the breakpoint string.
