React Utils - v1.0.4

Make renderSpy (much) better, and add perf as an alias

GIF: Demo shows a Storybook example where I render the component a bunch of times. The same component as added twice. One that is updated from a prop change, and one that isn't (aka. "wasted" render).

This update improves renderSpy dramatically, adding in performance timing
features and wasted render capturing.

This experience is similar to Redux logger and React's deprecated performance
tools.