Upgrade to use date-fns Version 2 about dayzed

[mkartchner994]

After some other comments and thoughts about how to handle the date-fns dependency, I decided to just bundle it into Dayzed in the release canidate that was just published (3.0.0-rc.1). This should mean you wouldn't have to worry about Dayzed anymore when upgrading date-fns in other parts of your app.

This RC requires react to be at >=16.8 for hooks, but still supports the render prop as before, so if you are already using >=16.8, it should hopefully "just work" with bumping the version.

If you wanted to try it out and let me know your thoughts that would be great . I'll probably look to push a new major release (v3) which includes the new useDayzed hook and these updates for date-fns in the next couple days if I don't hear any big concerns.

Thanks!

[efredine]

I tried it out and it does indeed 'just work' with a version bump. Thank you!

Though not essential, I'll probably refactor to use the new hook.

[mkartchner994]

v3 has been released. Let me know if you see any issues. Thanks!