Allow Users to Add Items to Course by Using an Item Search, Rather than just a Barcode

Current situation or problem:
Items are added to a course by entering the item barcode into the "Add Item" field. The app then uses the barcode to look up the item and add the item to the course.
This requires that users look up the item in inventory first and copy the barcode there, before adding the item to the course.

Users would like to be able to select the option to "Search for an Item" from the Course page, select the correct item in inventory, and have that add the item to the Course.