♻️ move wrapped binary type to separate file

include/nlohmann/detail/input/json_sax.hpp

@@ -23,13 +23,9 @@ input.
 template<typename BasicJsonType>
 struct json_sax
 {
-    /// type for (signed) integers
     using number_integer_t = typename BasicJsonType::number_integer_t;
-    /// type for unsigned integers
     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
-    /// type for floating-point numbers
     using number_float_t = typename BasicJsonType::number_float_t;
-    /// type for strings
     using string_t = typename BasicJsonType::string_t;
     using binary_t = typename BasicJsonType::binary_t;