Bug fixing round & add some emummc menus

Notable bugs fixed:
- pkg1id is now also used as foldername during fw dump
- Clearing of screen in _recursive functions is no longer hardcoded
- Folders get the correct file attributes
- first 16 MiB of partition during partitioning gets cleared now

source/libs/fatfs/ff.c

@@ -6113,6 +6113,8 @@ FRESULT f_fdisk (
 	DWORD sz_disk, p_sect, b_cyl, b_sect;
 	FRESULT res;
 
+	BYTE *empty_buff;
+	empty_buff = ff_memcalloc(sizeof(BYTE), 16384);
 
 	stat = disk_initialize(pdrv);
 	if (stat & STA_NOINIT) return FR_NOT_READY;
@@ -6167,8 +6169,13 @@ FRESULT f_fdisk (
 		st_dword(p + 12, p_sect);			/* Number of sectors */
 		/* Next partition */
 		b_sect += p_sect;
+
+		for (int cursect = 0; cursect < 1024; cursect++){
+			disk_write(pdrv, empty_buff, b_sect + (32 * cursect), 32);
+		}
 	}
 	st_word(p, 0xAA55);		/* MBR signature (always at offset 510) */
+	ff_memfree(empty_buff);
 
 	/* Write it to the MBR */
 	res = (disk_write(pdrv, buf, 0, 1) == RES_OK && disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;