seek(0) doesn't work

[profezzorn]

Because SeekMode enum doesn't match the defines in dosfs_api.h

Suggested fix:

enum SeekMode {
SeekSet = F_SEEK_SET,
SeekCur = F_SEEK_CUR,
SeekEnd = F_SEEK_END
};

[GrumpyOldPizza]

Got an update coming that will adjust dosfs_api.h properly.