feat(badge): add new component

lib/components/Badge/Badge.js

@@ -0,0 +1,13 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+const Badge = ({ children }) => (
+    <span>{ children }</span>
+  );
+
+Badge.propTypes = {
+  /** Content for the button */
+  children: PropTypes.node.isRequired,
+};
+
+export default Badge;

lib/components/Badge/index.js

@@ -0,0 +1 @@
+export { default } from './Badge';

lib/components/index.js

@@ -1,5 +1,7 @@
+import Badge from './Badge';
 import Button from './Button';
 
 export {
-  Button, // eslint-disable-line import/prefer-default-export
+  Badge,
+  Button,
 };