[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/nfc/scenes/nfc_scene_file_select.c

@@ -11,8 +11,11 @@ void nfc_scene_file_select_on_enter(void* context) {
 }
 
 bool nfc_scene_file_select_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
     return false;
 }
 
 void nfc_scene_file_select_on_exit(void* context) {
+    UNUSED(context);
 }