[FL-2520] FW build with -Wextra (#1185)

* Fixing compiler warnings with -Wextra
* More warnings suppression, WIP
* Even more warning fixes
* Added new lines at end of text files.
* Padding fix
* Additional fixes to warnings on different build configurations; added -Wextra to default build pipeline
* Fixes for Secplus v1
* -additional warnings
* +-Wredundant-decls fixes
* FuriHal: print stack overflow task name in console
* FuriHal: add missing include

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

applications/gpio/scenes/gpio_scene_test.c

@@ -19,9 +19,12 @@ void gpio_scene_test_on_enter(void* context) {
 }
 
 bool gpio_scene_test_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
     return false;
 }
 
 void gpio_scene_test_on_exit(void* context) {
+    UNUSED(context);
     gpio_item_configure_all_pins(GpioModeAnalog);
 }

applications/gpio/scenes/gpio_scene_usb_uart_config.c

@@ -28,12 +28,9 @@ static const uint32_t baudrate_list[] = {
 };
 
 bool gpio_scene_usb_uart_cfg_on_event(void* context, SceneManagerEvent event) {
-    //GpioApp* app = context;
-    bool consumed = false;
-
-    if(event.type == SceneManagerEventTypeCustom) {
-    }
-    return consumed;
+    UNUSED(context);
+    UNUSED(event);
+    return false;
 }
 
 static void line_vcp_cb(VariableItem* item) {