ItemChangeBeauty function items

[gwagwaflamingo]

ItemChangeBeauty items aren't implemented correctly.

At the moment, they are consumed on use and open an empty Beauty Salon window, displaying only the player's current hairstyle.

In reality, they're meant to be consumed only once applied on the player, and should open a Beauty Salon window displaying the items defined in table/shop_beautycoupon corresponding to the voucher's function parameter.

A sniff of this can be seen here.