Touch Navigate per ShimmyMySherbet

Adds touch screen gesture navigation to allow for simple and natural back and forth navigation on touch screen laptops.

Intended specifically for 2-in-1 laptops when used in tablet mode (keyboard folded behind screen).

Requires a touch screen to work, these gestures do not work on the track-pad.

Gestures:

Swipe from the far left of the screen toward the center to navigate backwards.

Swipe from the far right of the screen toward the center to navigate forwards.