Fix typings and add type test

[robertkiel]

This fixes some issues with typings and adds a test that checks whether we export the types correctly.

It also includes all installed @types/... types instead of having a manual configuration. See https://www.typescriptlang.org/docs/handbook/tsconfig-json.html#types-typeroots-and-types for more information.

[jacobheun]

@wemeetagain @carsonfarmer mind checking out the types updates here?

I'm not sure if these are breaking type changes or not. If so, I may move these to a future v8 branch, as I'd prefer to avoid a major release that only includes type updates.

[robertkiel]

Exactly, these changes are "only" type upgrades ... And some @ts-ignore in the test file such that Typescript does not break up the type check process.

It also adds a check to .fromNodeAddress(obj) that restricts family to IPv4 and IPv6.

Before, you could set IPv6 or anything else

[carsonfarmer]

Most of these changes are aesthetic (though useful/good). There doesn't appear to be any type breakage just type upgrades as @robertkiel has specified. Probably safe to merge, but no need for a major release, minor would be fine.

[wemeetagain]

LGTM agreed with @carsonfarmer and @robertkiel