Comment 18 for bug 1919465

Here's a rebased branch that addresses the duplicate copy issue:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1919465-hold-pull-list-angular-v5

The commit makes 2 changes:

1. Only show a value for "Current Item" when a hold has a targeted item (i.e. hold.current_copy).

2. Adds a new column called "Requested Item" which displays the copy barcode for copy-level holds regardless of whether the hold has a current_item.