Improve tests (#854)

Recover commented out tests, 
Improve usage of helper in driver, 
Added data-wd-key for test to use instead of classes
Moved all non tsx file to a single folder (lib) instead of lib and utils

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Co-authored-by: Yuri Astrakhan <yuriastrakhan@gmail.com>

src/components/FieldComment.tsx

@@ -26,6 +26,7 @@ export default class FieldComment extends React.Component<FieldCommentProps> {
         value={this.props.value}
         onChange={this.props.onChange}
         default="Comment..."
+        data-wd-key="layer-comment.input"
       />
     </Block>
   }