Support mice with horizontal scroll wheels

[drewnoakes]

Mentioned here https://developercommunity.visualstudio.com/content/problem/68456/horizontal-mouse-scrolling.html?childToView=436636#comment-436636

[drewnoakes]

This will be hard for me to develop as I don't have a mouse with a tilt wheel. If someone wants this feature I will be happy to see a PR.

Some information here:

• https://stackoverflow.com/a/35324858/24874
• https://stackoverflow.com/a/53662539/24874
• https://stackoverflow.com/a/7946785/24874
• http://www.philosophicalgeek.com/2007/07/27/mouse-tilt-wheel-horizontal-scrolling-in-c/