message: [crispy] adding count() helper
diff: @@ -61,4 +61,10 @@ void for_each(ExecutionPolicy _ep, Container && _container, Fn && _fn)
  std::for_each(_ep, begin(_container), end(_container), std::forward<Fn>(_fn));
  }
  +template <typename Container, typename T>
  +auto count(Container&& _container, T&& _value)
  +{
  + return std::count(begin(_container), end(_container), std::forward<T>(_value));
  +}
  +
  } // end namespace
  