Adds both start and end points by given x,y
// Line 1,1 -> 10,10const l = Lines.fromNumbers(1,1,10,10);const ll = Lines.sum(l, {x:2, y:4});// Yields: 3,5 -> 12,14 Copy
// Line 1,1 -> 10,10const l = Lines.fromNumbers(1,1,10,10);const ll = Lines.sum(l, {x:2, y:4});// Yields: 3,5 -> 12,14
Adds both start and end points by given x,y