Comment 9 for bug 1908743

Here's a new rebased branch:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1908743-staffcat-org-not-pickup-lib-v2

This completes the support for disabling org units in the org selector, instead of hiding them, and disables orgs that cannot have users/vols for holds placement in addition to the org setting.