[FL-1720] BLE GUI refactoring (#678)

* dialog_ex: add clean method, fix documentation
* application: add bt debug and settings application
* bt: add debug application
* bt: add settings application
* bt: rework bt service
* bt debug: fix carrier debug app
* assets: add debug animation to main menu
* bt debug: fix bt packet test
* bt service: rework bt service
* bt: cleanup
* Assets: fix spelling
* Ble: wait for core 2 startup complete before initializing radio stack.
* Accessor: remove dead code, switch port PA6 to PA4, because interrupt line 6 is used by down button.
* FuriHal: assert interrupt line on add_int_callback.
* Bt: update icon on core2 startup complete.

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

applications/bt/bt_debug_app/views/bt_test.h

@@ -0,0 +1,46 @@
+#pragma once
+#include <gui/view.h>
+
+typedef enum {
+    BtTestStateStarted,
+    BtTestStateStopped,
+} BtTestState;
+
+typedef struct BtTest BtTest;
+typedef void (*BtTestChangeStateCallback)(BtTestState state, void* context);
+typedef void (*BtTestBackCallback)(void* context);
+typedef struct BtTestParam BtTestParam;
+typedef void (*BtTestParamChangeCallback)(BtTestParam* param);
+
+BtTest* bt_test_alloc();
+
+void bt_test_free(BtTest* bt_test);
+
+View* bt_test_get_view(BtTest* bt_test);
+
+BtTestParam* bt_test_param_add(
+    BtTest* bt_test,
+    const char* label,
+    uint8_t values_count,
+    BtTestParamChangeCallback change_callback,
+    void* context);
+
+void bt_test_set_change_state_callback(BtTest* bt_test, BtTestChangeStateCallback callback);
+
+void bt_test_set_back_callback(BtTest* bt_test, BtTestBackCallback callback);
+
+void bt_test_set_context(BtTest* bt_test, void* context);
+
+void bt_test_set_rssi(BtTest* bt_test, float rssi);
+
+void bt_test_set_packets_tx(BtTest* bt_test, uint32_t packets_num);
+
+void bt_test_set_packets_rx(BtTest* bt_test, uint32_t packets_num);
+
+void bt_test_set_current_value_index(BtTestParam* param, uint8_t current_value_index);
+
+void bt_test_set_current_value_text(BtTestParam* param, const char* current_value_text);
+
+uint8_t bt_test_get_current_value_index(BtTestParam* param);
+
+void* bt_test_get_context(BtTestParam* param);