hddmenu: Support ext4 for formating disk

- Support ext4 for formating disk (require /sbin/mkfs.ext4)
- Support ext4 for check disk (require /sbin/fsck.ext4 or /sbin/e2fsck)
- Display disk format in menu (require /sbin/blkid)
- 'ext4' and 'display disk format' disabled when required files not present

src/system/locals.h

@@ -638,7 +638,7 @@ typedef enum
 	LOCALE_HDD_ACTIVATE,
 	LOCALE_HDD_CHECK,
 	LOCALE_HDD_CHECK_FAILED,
-	LOCALE_HDD_EXT3,
+	LOCALE_HDD_CHECK_FORMAT_BAD,
 	LOCALE_HDD_EXTENDED_SETTINGS,
 	LOCALE_HDD_FAST,
 	LOCALE_HDD_FORMAT,
@@ -649,7 +649,6 @@ typedef enum
 	LOCALE_HDD_MIDDLE,
 	LOCALE_HDD_NOISE,
 	LOCALE_HDD_NOT_FOUND,
-	LOCALE_HDD_REISER,
 	LOCALE_HDD_REMOVABLE_DEVICE,
 	LOCALE_HDD_SETTINGS,
 	LOCALE_HDD_SLEEP,
@@ -889,6 +888,7 @@ typedef enum
 	LOCALE_MENU_HINT_HDD,
 	LOCALE_MENU_HINT_HDD_APPLY,
 	LOCALE_MENU_HINT_HDD_CHECK,
+	LOCALE_MENU_HINT_HDD_FMT,
 	LOCALE_MENU_HINT_HDD_FORMAT,
 	LOCALE_MENU_HINT_HDD_NOISE,
 	LOCALE_MENU_HINT_HDD_SLEEP,

src/system/locals_intern.h

@@ -638,7 +638,7 @@ const char * locale_real_names[] =
 	"hdd_activate",
 	"hdd_check",
 	"hdd_check_failed",
-	"hdd_ext3",
+	"hdd_check_format_bad",
 	"hdd_extended_settings",
 	"hdd_fast",
 	"hdd_format",
@@ -649,7 +649,6 @@ const char * locale_real_names[] =
 	"hdd_middle",
 	"hdd_noise",
 	"hdd_not_found",
-	"hdd_reiser",
 	"hdd_removable_device",
 	"hdd_settings",
 	"hdd_sleep",
@@ -889,6 +888,7 @@ const char * locale_real_names[] =
 	"menu.hint_hdd",
 	"menu.hint_hdd_apply",
 	"menu.hint_hdd_check",
+	"menu.hint_hdd_fmt",
 	"menu.hint_hdd_format",
 	"menu.hint_hdd_noise",
 	"menu.hint_hdd_sleep",