Added sf\3tshell platform with support for building beagle textshell+fshell ROMs.
As part of that:
* Added baserom command and tweaked it to be more friendly with SF baselines.
* Lots of build fixes
Also cd now makes sure the current working directory matches the file system with respect to case.
EXPORTS
Close__12RExtraBtrace @ 1 NONAME R3UNUSED ; RExtraBtrace::Close(void)
Connect__12RExtraBtrace @ 2 NONAME R3UNUSED ; RExtraBtrace::Connect(void)
EnableProfiling__12RExtraBtracei @ 3 NONAME R3UNUSED ; RExtraBtrace::EnableProfiling(int)
Handle__C12RExtraBtrace @ 4 NONAME R3UNUSED ; RExtraBtrace::Handle(void) const
__12RExtraBtrace @ 5 NONAME R3UNUSED ; RExtraBtrace::RExtraBtrace(void)