[FL-3884] Proper integer parsing (#3839)

* feat: strint_to_uint32 and tests
* fix: permit explicit bases and prefixes
* feat: strint_to_{int32,uint16,int16}
* feat: strint_to_u?int64
* refactor: replace strtol, strtoul, sscanf with strint_to_*
* fix: api symbols
* docs: document parameter `end` of strint_to_uint_32
* style: apply changes requested by hedger
* refactor: fix pvs-studio diagnostic
* style: apply changes requested by CookiePLMonster
* fix: unused var
* fix: pointer type
* refactor: convert atoi to strint_to_*
* fix: strint_to_uint8 doesn't actually exist ._ .
* fix: memory leak
* style: address review comments
* Toolbox: couple small comments in the code and doxygen comment update. SubGhz, Loader: fix strint usage.
* Loader: fix incorrect cast

Co-authored-by: あく <alleteam@gmail.com>

applications/main/nfc/plugins/supported_cards/itso.c

@@ -3,6 +3,7 @@
 
 #include <flipper_application/flipper_application.h>
 #include <lib/nfc/protocols/mf_desfire/mf_desfire.h>
+#include <lib/toolbox/strint.h>
 
 #include <applications/services/locale/locale.h>
 #include <datetime/datetime.h>
@@ -72,7 +73,10 @@ static bool itso_parse(const NfcDevice* device, FuriString* parsed_data) {
         dateBuff[17] = '\0';
 
         // DateStamp is defined in BS EN 1545 - Days passed since 01/01/1997
-        uint32_t dateStamp = (int)strtol(datep, NULL, 16);
+        uint32_t dateStamp;
+        if(strint_to_uint32(datep, NULL, &dateStamp, 16) != StrintParseNoError) {
+            return false;
+        }
         uint32_t unixTimestamp = dateStamp * 24 * 60 * 60 + 852076800U;
 
         furi_string_set(parsed_data, "\e#ITSO Card\n");