LP1837802: Add records to shared record buckets from the Staff Catalog

LP1837802: Add records to shared record buckets from the Staff Catalog

To test:
1) As User A, create a bucket.
2) As User B, search in the Staff Catalog, and add some items to your
basket.
3) As User B, click Basket Actions, and choose add Basket to Bucket
4) Click on the "Shared Bucket" tab and enter the id of User A's bucket

Some potential scenarios to test:
* Trying to add to a bucket that does not exist
* Trying to add to an unshared bucket when User B does not have the
VIEW_CONTAINER permission
* Trying to add to existing and new buckets as before

Signed-off-by: Jane Sandberg <sandbej@linnbenton.edu>
Signed-off-by: Terran McCanna <tmccanna@georgialibraries.org>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>