LP1888723 Angular volcopy UI mods and repairs

LP1888723 Angular volcopy UI mods and repairs

* Use plus/minus buttons for adding and removing vols and copies.
* Support adding multiple vols and copies via add-multi pop-over
* Support hiding the Parts column
* Move Generate Barcodes and Use Checkdigit to bottom row.
* Collapse Batch Actions row by default, state stored in preferences.
* Fix issue where loading a record with no holdings would result in a
  mostly image page.
* Various display/layout repairs for showing/hiding columns

Signed-off-by: Bill Erickson <berickxx@gmail.com>