[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/unit_tests/test_index.c

@@ -35,6 +35,9 @@ void minunit_print_fail(const char* str) {
 }
 
 void unit_tests_cli(Cli* cli, string_t args, void* context) {
+    UNUSED(cli);
+    UNUSED(args);
+    UNUSED(context);
     uint32_t test_result = 0;
     minunit_run = 0;
     minunit_assert = 0;