WAD List Tooltip

Mouse hovering the wads in the list will show a tooltip with the full path, to display the part that cuts off when the path is too big for the list width.

Visual Studio decided to move the order of controls in the designer file, but it's merged with 7005a6449304b3f356c42d9c83c456420fbdf863

The timer is a bit unreliable when stopping and starting instantly but can just re-hover to show the tooltip.