[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/lfrfid/helpers/rfid_key.h

@@ -14,7 +14,7 @@ public:
     LfrfidKeyType get_type();
     const uint8_t* get_data();
     const char* get_type_text();
-    const uint8_t get_type_data_count();
+    uint8_t get_type_data_count() const;
     char* get_name();
     uint8_t get_name_length();
     void clear();