Bug 31860: Standardize capitalization used for item subfield descriptions

Bug 31860: Standardize capitalization used for item subfield descriptions

This standardizes "Total Holds" to "Total holds" etc.
Also changed is UNIMARC
* "Collection code" to "Collection" like MARC21
* "Current Location" to "Current library" like MARC21 (holdingbranch)
* "Permanent Location" to "Home library" like MARC21 (homebranch)

To test:
* You'll need to apply the patch and then run the web installer to
  create your frameworks
* Once you got a fresh installation, got to
  Administration > Bibliographic frameworks > Choose any
* Go to 995 (for UNIMARC) or 952 (for MARC21)
* Check the descriptions of the subfields for capitalization and
  spelling errors

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>