optimize configured defaults on littlefs and address review comments
support lseek() in littlefs in a way that enables terrain to work
rename file and directory structures in littlefs
code in littlefs glue should be C++ rather than C
check for strdup failure on littlefs
use correct read status for nor flash
implement format on littlefs
optimize device calls in littlefs flash usage
check for fileops allowed in littlefs
littlefs optimization and support for mtime
