First cut at an interface to list "staged" users by org unit.

First cut at an interface to list "staged" users by org unit.

APROPOS:
"Ability to have online card applications entered directly into system, with approval and checking done by staff before account is activated"

TODO:
* Wire up Load patron to spawn the existing patron editor interface
* See if there is a Cancel staged patron method we want to call from here
* Add an org unit selector instead of using the workstation ou
* Support paging or a Fetch More button or something similar (the list retrieval method has offset/limit parameters)

git-svn-id: svn://svn.open-ils.org/ILS/trunk@14929 dcc99617-32d9-48b4-a31d-7c20da2025e4