lp1739277 AngJS Org Select Class Callback

lp1739277 AngJS Org Select Class Callback

- Refactor Org Selector to contain org ID information in addition to
shortname.
- Add OrgClassCallback support to AngJS egOrgSelector, featuring an
array of ids and a function returning a CSS key/value pair.
- Implement OrgClassCallback in the AngJS Catalog Holdings View UI.

Signed-off-by: Kyle Huckins <khuckins@catalyte.io>
 Changes to be committed:
	modified:   Open-ILS/src/templates/staff/cat/catalog/t_holdings.tt2
	modified:   Open-ILS/src/templates/staff/share/t_org_select.tt2
	modified:   Open-ILS/web/js/ui/default/staff/cat/catalog/app.js
	modified:   Open-ILS/web/js/ui/default/staff/services/ui.js