[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/u8g2/u8x8_gpio.c

@@ -44,4 +44,4 @@ void u8x8_gpio_Delay(u8x8_t *u8x8, uint8_t msg, uint8_t dly)
 {
   u8x8->gpio_and_delay_cb(u8x8, msg, dly, NULL);
 }
-*/
+*/