[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/input/input.c

@@ -68,10 +68,10 @@ int32_t input_srv() {
     input = malloc(sizeof(Input));
     input->thread_id = furi_thread_get_current_id();
     input->event_pubsub = furi_pubsub_alloc();
-    furi_record_create("input_events", input->event_pubsub);
+    furi_record_create(RECORD_INPUT_EVENTS, input->event_pubsub);
 
 #ifdef SRV_CLI
-    input->cli = furi_record_open("cli");
+    input->cli = furi_record_open(RECORD_CLI);
     if(input->cli) {
         cli_add_command(input->cli, "input", CliCommandFlagParallelSafe, input_cli, input);
     }

applications/input/input.h

@@ -7,6 +7,8 @@
 
 #include <furi_hal_resources.h>
 
+#define RECORD_INPUT_EVENTS "input_events"
+
 /** Input Types
  * Some of them are physical events and some logical
  */