Port additional React-Redux TS typetests from DefinitelyTyped

[markerikson]

We copied over a bunch of typetests for React-Redux as part of the TS conversion, which are currently here:

React-Redux: test/typetests/react-redux-typetests.tsx

However, I was just comparing that file with the typetests that are currently in DefinitelyTyped, and there's a big difference. Our current file is only around 500 lines, and the DT file is about 1600 lines:

DefinitelyTyped: react-redux/react-redux-typetests.tsx

We should review the DT typetest file and port over as much as possible, to ensure that the types we've ported and updated are thoroughly covered and don't break existing code. Also might be good to split the typetests into separate files (at a minimum one each for connect, useDispatch, and useSelector - maybe even further?) so it's easier to find a given section.

[markerikson]

Might as well tackle this myself for now.