This adds authorized value lists for use in MARC21 tags 336 - Content Type,
337 - Media Type, and 338 - Carrier Type, subfields $a and $b.
Test plan:
1. Create a fresh Koha instance
2. Navigate to admin > authorized values
3. Note there are no RDA value categories
4. Apply the patch and recreate a new Koha
5. Repeat step 2
6. There are six RDA value categories: RDACARRIER, RDACARRIER_CODE,
RDACONTENT, RDACONTENT_CODE, RDAMEDIA, and RDAMEDIA_CODE
Sponsored-by: California College of the Arts
Signed-off-by: Miranda Nero <mnero@oslri.net>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Andrew Fuerste Henry <andrew@bywatersolutions.com>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
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