LP #1906859: Create carousels from items

LP #1906859: Create carousels from items

To test carousel creation from item buckets:
1. Create an item bucket
2. Add a variety of items to your bucket
3. Select all items
4. Open the buckets menu
5. Under items, select "Create Carousel from Bucket"
6. Give your new carousel a name
7. Go to Local Admin > Carousels and confirm that a carousel
now appears.
8. Open the record bucket for the new carousel and confirm
that it contains all the titles for the items.

To test carousel creation from item status:
1. Scan items into item status
2. Select all items
3. Open the actions menu
4. Select "Create Carousel from Selected Items"
5. Repeat steps 6-8 above

Signed-off-by: Jane Sandberg <js7389@princeton.edu>
Signed-off-by: Andrea Buntz Neiman <abneiman@EquinoxOLI.org>
Signed-off-by: Katie Greenleaf Martin <kgm@sparkpa.org>
Signed-off-by: Blake <blake@mobiusconsortium.org>
Signed-off-by: Michele Morgan <mmorgan@noblenet.org>
Signed-off-by: Terran McCanna <tmccanna@georgialibraries.org>