Product Detail Basic Information

@spencern commented on [Tue Apr 03 2018](https://github.com/reactioncommerce/reaction/issues/4130)

Add the basic information section to the Product Detail layout as defined in #4126 

![image](https://user-images.githubusercontent.com/1203639/38232925-1ef50dd8-36d6-11e8-8caa-b724f51a7527.png)

The product detail layout contains the product `price`, `vendor`, and `description` 

