Function exteriorIntegerPoints

exteriorIntegerPoints(circle): IterableIterator<Point>
Yields the points making up the exterior (ie. circumference) of the circle. Uses Midpoint Circle Algorithm
Parameters
- circle: CirclePositioned
Returns IterableIterator<Point>
Example: Draw outline of circle
```
const circle = { x: 100, y: 100, radius: 50 }
for (const pt of Circles.exteriorIntegerPoints(circle)) {
 // Fill 1x1 pixel
 ctx.fillRect(pt.x, pt.y, 1, 1);
}
```