Cleanup types for package

[AKorezin]

Q	A
Bug fix?	yes
New feature?	no
Deprecations?	no
Tickets	no
License	MIT

Summary

Export all types as module like done in @types/node.

Any interfaces and types of this modules now can be imported.

import whoiser, {OptionsGeneric, WhoisSearchResult} from 'whoiser';
const customOptions: OptionsGeneric = {timeout: 10000}; // this const is of type Options, not an object
const request = 'example.com';
const result = await whoiser(request, customOptions);

Add Options interface for generic options.

Add different options types for every function with options.
So all function will have their own list of parameters.
And the default export will have universal parameters for all of them.

Add known result type for whois search functions.

I expect that every result will be at least empty object {}.
But if everything is ok the result will be an object

{
  "Domain Name": "sample.domain.name",
  "Registrar": "sample.registrar.name",
  "Group": [
    "item1",
    "item2",
    "item3"
  ],
  "RecursiveProperty": {
    "propertyIsAString": "a string property",
    "propertyIsAnArray": [
      "an array property item1",
      "an array propery item2"
    ],
    "oneLevelDeeper": {
      "deepPropery": "deep property value"
    }
  }
}

[AKorezin]

@AndreiIgna

[AndreiIgna]

Hey @AKorezin, thanks for improving this and adding the detailed comments. This is merged and I will create a release by tomorrow