Export interfaces to be avaiable through package import

[prabuvenkat-gh]

Currently if I want to use the prop-types from the package, I would need to import the required file from the dist. For example:

import { Circle } from 'rough-react-wrapper';
import { CircleProps } from 'rough-react-wrapper/dist/components/Drawables/Circle/Circle.interfaces';

This is because the interfaces are exported separately through .interfaces.d.ts. Could the prop interfaces also be exported directly from index.d.ts files so they are available for import directly from the package, instead? So that the import would be the much simpler:

import { Circle, CircleProps } from 'rough-react-wrapper';

Can submit a PR for all the components if you can grant branch and PR rights. Thanks!