[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>

lib/toolbox/md5.c

@@ -296,4 +296,4 @@ void md5(const unsigned char* input, size_t ilen, unsigned char output[16]) {
     md5_finish(&ctx, output);
 
     memset(&ctx, 0, sizeof(md5_context));
-}
+}