From wishlist to shopping cart not adding without product options.

### Preconditions

1. Magento V : 2.1.9
2. PHP V: 7.0.27

### Steps to reproduce

1. Clicked on add to wishlist from product detail page.
2. Product is added in wishlist.
3. Now when i click on add to cart button from wishlist. cart showing error message "Specify the required product options."

### Expected result

1. while adding product in wishlist it should ask for product options like size or color.

### Actual result

1. [Screenshot, logs]

So, I need to make the “Add to Wishlist” behave exactly like “Add to Cart”. The other benefit of doing so (asking user to choose configurable options while adding to wishlist) is that when you move the wishlist item (configurable product) to cart then it will directly go to cart without returning back to product page asking to select options.

**Original Report**: https://github.com/magento/magento2/issues/13856 by @Sonal824

Reproduce the wishlist-to-cart flow using Magento 2.1.9 with PHP 7.0.27, following the listed steps for a configurable product without selected options. Compare the wishlist add flow with Add to Cart, then verify that required options are requested before saving the wishlist item and that the item can later move directly to the cart.

Written by the indexing model from the issue text.