feat: Added react key to generated props

Author: KnisterPeter

Diff for: cli.js

@@ -3,7 +3,7 @@ var react2dts = require('./index');
 var minimist = require('minimist');
 
 var options = minimist(process.argv.slice(2), {
-  string: 'name'
+  string: ['name']
 });
 
 react2dts.cli(options);

Diff for: index.ts

@@ -188,6 +188,7 @@ class Writer {
 
   public props(name: string, props: any, fn?: () => void): void {
     this.interface(`${name}Props`, () => {
+      this.prop('key', 'any', true);
       Object.keys(props).forEach((propName: any) => this.prop(propName, props[propName], true));
     });
     if (fn) {

Diff for: tests/simple-component.d.ts

@@ -2,6 +2,7 @@ declare module 'simple-component' {
 	import * as React from 'react';
 
 	interface SimpleComponentProps {
+		key?: any;
 		optionalAny?: any;
 		optionalArray?: any[];
 		optionalBool?: boolean;