[FL-2809] Rework BLE key storage (#2154)

* bt: disconnect first on profile change
* bt keys: rework bt keys
* saved struct: add payload size getter to API
* bt: rework bt with new key storage API
* bt: add keys storage operation to bt API
* hid: save bt keys on sd card
* bt: add unit tests for key storage
* bt: working profile switch
* bt: cleanup
* bt hid: change keys storage path

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

applications/services/bt/bt_service/bt_keys_storage.h

@@ -1,10 +1,20 @@
 #pragma once
 
-#include "bt_i.h"
-#include "bt_keys_filename.h"
+#include <stdint.h>
+#include <stdbool.h>
 
-bool bt_keys_storage_load(Bt* bt);
+typedef struct BtKeysStorage BtKeysStorage;
 
-bool bt_keys_storage_save(Bt* bt);
+BtKeysStorage* bt_keys_storage_alloc(const char* keys_storage_path);
 
-bool bt_keys_storage_delete(Bt* bt);
+void bt_keys_storage_free(BtKeysStorage* instance);
+
+void bt_keys_storage_set_file_path(BtKeysStorage* instance, const char* path);
+
+void bt_keys_storage_set_ram_params(BtKeysStorage* instance, uint8_t* buff, uint16_t size);
+
+bool bt_keys_storage_load(BtKeysStorage* instance);
+
+bool bt_keys_storage_update(BtKeysStorage* instance, uint8_t* start_addr, uint32_t size);
+
+bool bt_keys_storage_delete(BtKeysStorage* instance);