simonjnesta

Add support for emulating devices for hover and pointer css media queries

1

The [pointer](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/pointer), [any-pointer](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/any-pointer), [hover](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/hover) and [any-hover](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/any-hover) media queries allow you to style a page based on the available input devices. Currently there is no way I can see to change...