TSG-21649 修复client_administrative_area字段乱码问题以及Edit Element处理多json问题

common/include/tfe_http.h

@@ -300,6 +300,7 @@ typedef void (http_session_end_cb)(const struct tfe_stream * stream,
 struct http_field_name * http_field_name_duplicate(const struct http_field_name * orig);
 int http_field_name_compare(const struct http_field_name * lvalue, const struct http_field_name * rvalue);
 const char * http_field_name_to_string(const struct http_field_name * field);
+enum tfe_http_std_field http_field_name_to_std_field(const char * field_name, size_t field_name_len);
 void http_field_name_destory(struct http_field_name *);
 
 /* Tools functions for standard HTTP method */