code: public CrawlerPack addCookie(String name, String value){
          if( null == name ) {
              log.warn("addCookie: Cookie name null.");
              return this;
          }
  
          cookies.add( new Cookie("", name, value) );
  
          return this;
      }
docs: Creates a cookie with the given name and value.
  
  @param name    the cookie name
  @param value   the cookie value
  @return CrawlerPack