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.
#ifndef FSHELL_PLATFORM_MMH
#define FSHELL_PLATFORM_MMH
#define FSHELL_CAP_ALL
#define FSHELL_PROTECTED_UIDS
#define FSHELL_PLATFORM_SYMTB 92
#define FSHELL_NO_WSERV_SUPPORT
#define FSHELL_NO_BLUETOOTH_SUPPORT
#define FSHELL_NO_TELEPHONY_SUPPORT
#define FSHELL_NO_AUDIO_SUPPORT
#define FSHELL_NO_SQL_SUPPORT
#define FSHELL_NO_PIPS_SUPPORT
#define FSHELL_NO_LBS_SUPPORT
#define FSHELL_NO_DOBJECTIX_SUPPORT
#define FSHELL_NO_EGL_SUPPORT
#define FSHELL_NO_OPENVG_SUPPORT
#define FSHELL_NO_ANALYSEHEAP_SUPPORT
#define FSHELL_NO_APPARC_SUPPORT
#define FSHELL_FLEXIBLEMM_AWARE
#define FSHELL_ARM11XX_SUPPORT
#define FSHELL_TRACECORE_SUPPORT
#endif // FSHELL_PLATFORM_MMH