[FL-2675] /int space reservation (#1448)

* storage: added global #defines for /int, /ext & /any
* storage: introduced PATH_EXT, PATH_INT& PATH_ANY macros
* core apps: moved hardcoded config files names to separate headers; prefixed them with "."; updater: added file name migration to new naming convention on backup extraction
* storage: fixed storage_merge_recursive handling of complex directory structures; storage_move_to_sd: changed data migration logic to all non-dot files & all folders
* core: added macro aliases for core record names
* Bumped protobuf commit pointer
* storage: reserved 5 pages in /int; denying write&creation of non-dot files when running out of free space

Co-authored-by: あく <alleteam@gmail.com>

applications/notification/notification_app.h

@@ -2,6 +2,7 @@
 #include <furi_hal.h>
 #include "notification.h"
 #include "notification_messages.h"
+#include "notification_settings_filename.h"
 
 #define NOTIFICATION_LED_COUNT 3
 #define NOTIFICATION_EVENT_COMPLETE 0x00000001U
@@ -32,7 +33,7 @@ typedef struct {
 } NotificationLedLayer;
 
 #define NOTIFICATION_SETTINGS_VERSION 0x01
-#define NOTIFICATION_SETTINGS_PATH "/int/notification.settings"
+#define NOTIFICATION_SETTINGS_PATH INT_PATH(NOTIFICATION_SETTINGS_FILE_NAME)
 
 typedef struct {
     uint8_t version;