Gutter not creating space between vertical legend rows

[tacomanator]

According to VictoryLegend docs:

When orientation is vertical, gutters are the space between rows.

Currently gutter space is applied between columns instead of rows, regardless of orientation. Can be reproduced on website using orientation vertical with large gutter:

<VictoryLegend x={125} y={50}
  orientation="vertical"
  gutter={300}
  style={{ border: { stroke: "black" } }}
  data={[{ name: "One" }, { name: "Two" }, { name: "Three" }]}
/>

Great job on this library guys!

[ebrillhart]

Seconding this!

[exogen]

One additional TODO here is to update the docs