title: Magento add another new field in bundle item
body: <p>I want to add the new text column below the default title of bundle item.
  I need to add an extra field when i create a new bundle product
  I want the new text field below the default title for adding a description.
  please help.Any help will be appreciated.
   <img src="https://i.stack.imgur.com/gyCGq.png" alt="enter image description here"></p>