Add case parameter to FormatArrayAsHex

Use upper case where needed for vanilla compatibility

src/string_func.h

@@ -41,7 +41,7 @@ int CDECL vseprintf(char *str, const char *last, const char *format, va_list ap)
 std::string CDECL stdstr_fmt(const char *str, ...) WARN_FORMAT(1, 2);
 std::string stdstr_vfmt(const char *str, va_list va) WARN_FORMAT(1, 0);
 
-std::string FormatArrayAsHex(std::span<const byte> data);
+std::string FormatArrayAsHex(std::span<const byte> data, bool upper_case = false);
 
 char *StrMakeValidInPlace(char *str, const char *last, StringValidationSettings settings = SVS_REPLACE_WITH_QUESTION_MARK) NOACCESS(2);
 [[nodiscard]] std::string StrMakeValid(std::string_view str, StringValidationSettings settings = SVS_REPLACE_WITH_QUESTION_MARK);