Export all of the types for development purposes

Say I want to create a wrapper for the lib (or prepare some settings),
availability of those types will help me much.

Usage example:

```ts
import { Options } from 'metadata-scraper';

const myCustomOptions: Options = {
  // ...
}
```

And alike.

WDYT?

src/index.ts

@@ -2,6 +2,9 @@ import got from 'got'
 import * as domino from 'domino'
 
 import { Options, Context, RuleSet, MetaData } from './types'
+
+export * from './types'
+
 import { metaDataRules } from './rules'
 
 const defaultOptions = {
@@ -109,4 +112,4 @@ const getMetaData = async function(input: string | Partial<Options>, inputOption
 }
 
 export default getMetaData
-module.exports = getMetaData
+module.exports = getMetaData