CarLeft, CarRight: Show when car(s) are to the left or right of you

[jfgilliam]

Make 2 widgets, one for left, the other for right so users can place them where they want to. Have no display when there's no car, blink slowly when one car, blink faster with 2 cars.

[jfgilliam]

enum irsdk_CarLeftRight
{
irsdk_LROff,
irsdk_LRClear, // no cars around us.
irsdk_LRCarLeft, // there is a car to our left.
irsdk_LRCarRight, // there is a car to our right.
irsdk_LRCarLeftRight, // there are cars on each side.
irsdk_LR2CarsLeft, // there are two cars to our left.
irsdk_LR2CarsRight // there are two cars to our right.
};