RPC: Implement storage_stat_request (#800)

* RPC: Update protobuf sources
* RPC: Implement storage_stat_request
* RPC: Test storage_stat_request
* FuriRecord: fix use after free in destroy method.
* Furi: refactor PubSub and it's usage. Fix allocation in RPC.
* FuriCore: fix memory leak in pubsub
* FuriCore: update unsubscribe method signature in pubsub, make subscription structure lighter.
* FuriCore: remove dead code

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

applications/input/input_i.h

@@ -6,8 +6,6 @@
 #pragma once
 
 #include "input.h"
-#include <FreeRTOS.h>
-#include <timers.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -35,7 +33,7 @@ typedef struct {
 /** Input state */
 typedef struct {
     osThreadId_t thread;
-    PubSub event_pubsub;
+    FuriPubSub* event_pubsub;
     InputPinState* pin_states;
     Cli* cli;
     volatile uint32_t counter;