Adding LITTLEFS after esp_littlefs (IDF) is built-in

[lorol]

See: #4096
Also Tools idea: https://github.com/lorol/arduino-esp32fs-plugin

[me-no-dev]

please pull the latest change. it's required to make CI work :)

[lorol]

Great. Now testing, feedback and tools mess.

[lorol]

@me-no-dev
It looks like to suppress the B110 and B1000000 redefining warnings. #undeff's should be after #include "vfs_api.h" and before #include "esp_littlefs.h".
I guess the easiest way is just you to correct directly on next commit instead of PR only for that?

#include "vfs_api.h"

extern "C" {
#include <sys/unistd.h>
#include <sys/stat.h>
#include <dirent.h>
  <<< undefs to be moved here 
#include "esp_littlefs.h"
#undef B110
#undef B1000000
}