Remove Format, Improve Annotations

This is a minor bump because it breaks format in Axis. We use numeral a lot at Netflix and format was a convenient way to just use numeral style formatting but it required numeral be a dependency for that one tiny feature. moment was removed for the same reason.

The other breaking change is that previously pieceHoverAnnotation would enable hover on individual pieces or on parts of a summary graphical object. This has been replaced with ORFrame having a summaryHoverAnnotation to explicitly turn on one mode or the other.

This also adds some new built-in annotation types to XYFrame, vertical-points and horizontal-points which draw circles on all the points at the same (graphical) vertical or horizontal position. This was part of a larger modification of the annotation handling to move away from a simple hoverAnnotation={true} to a system that lets you declare the kinds of annotations instantiated on hover rather than just the default frame-hover and column-hover. So now you can send objects that are basic annotation types or functions that return such objects or arrays of them, like this:

          hoverAnnotation={[
            { type: "y", disable: ["connector", "note"] },
            { type: "x", disable: ["connector", "note"] },
            d => ({ type: "xy", label: d.name }),
            { type: "frame-hover" },
            {
              type: "vertical-points",
              threshold: 5,
              r: (d, i) => i + 5
            },
            {
              type: "horizontal-points",
              threshold: 5,
              r: (d, i) => i + 5
            }
          ]}

Which will result in all sorts of annotations being called on hover and look something like this: