[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/fatfs/ff.c

@@ -1059,7 +1059,7 @@ DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluste
 					break;
 				}
 			}
-			/* go to default */
+			__attribute__ ((fallthrough));
 #endif
 		default:
 			val = 1;	/* Internal error */
@@ -5430,7 +5430,7 @@ FRESULT f_mkfs (
 					ch = 0xFFFF; st = 2; break;	/* Compress the no-case block if run is >= 128 */
 				}
 				st = 1;			/* Do not compress short run */
-				/* go to next case */
+				__attribute__ ((fallthrough));
 			case 1:
 				ch = si++;		/* Fill the short run */
 				if (--j == 0) st = 0;