Hooks!

After much discussion, we've decided these Hook things are probably going to stick around, so we might as well add some. Many thanks to @MrWolfZ, @josepot, @perrin4869, and @mpeyper for their contributions and to everyone else that offered feedback, ideas, and critiques as we built them out. Go open source!

Changes

• Add React Hooks (#1248 by @MrWolfZ)
• Add deps argument to useSelector (#1251 by @MrWolfZ)
• Use react-hooks-testing-library to test hooks (#1259 by @mpeyper)
• Remove useRedux (@markerikson)
• Remove useActions (@markerikson)
• Remove deps argument (#1272 by @josepot)
• Replace shallowEqual with reference equality in useSelector (#1288 by @perrin4869)
• Avoid unnecessary selector evaluations (#1273 by @josepot)
• Minor Hook testing improvements (#1294 by @MrWolfZ)