ucrtbase: Add __std_type_info_hash implementation

[Huw Davies]

Hi Piotr,

On Wed, Sep 14, 2016 at 03:23:04PM +0200, Piotr Caban wrote:
> +/******************************************************************
> + *              __std_type_info_hash (UCRTBASE.@)
> + *
> + * TODO: 64-bit version of the function uses different constatns

typo: 'constatns'.

Huw.