Bug 34648: Update MARC21 frameworks to Update 31 (December 2020)

Bug 34648: Update MARC21 frameworks to Update 31 (December 2020)

This patch updates the default MARC21 framework to reflect the changes brought by Update 30 (Dec. 2020).

To test:
1. Apply patch and restart
2. Go to Administration > MARC bibliographic framework
3. Click "Actions" next to the default framework and choose "MARC structure"
4. Check for the changes detailed in the update https://www.loc.gov/marc/up31bibliographic/bdapndxg.html

- Field 043 should now be repeatable

- There should be a new field 335, named EXTENSION PLAN
  - This field should be repeatable
  - Subfields:
    - 0 Authority record control number or standard number (R)
    - 1 Real World Object URI (R)
    - 2 Source (NR)
    - 3 Materials specified (NR)
    - 6 Linkage (NR)
    - 8 Field link and sequence number (R)
    - a Extension plan term (NR)
    - b Extension plan code (NR)
    **Note that subfield 7 was added in a later update and is therefore not included in this patch

- Field 345 should now be named MOVING IMAGE CHARACTERISTICS
  - There should be two new subfields
    - c Aspect ratio value (R)
    - d Aspect ratio designator (R)

- There should be two new subfields in field 384
  - 0 Authority record control number or standard number (R)
  - 1 Real World Object URI (R)

- The following subfields of field 856 should have an [OBSOLETE] mention and be hidden (shown in OPAC and intranet, but not editor)
  - b Access number [OBSOLETE]
  - h Processor of Request [OBSOLETE]
  - i Instruction [OBSOLETE]
  - j Bits per second [OBSOLETE]
  - k Password [OBSOLETE]
  - l Logon [OBSOLETE]
  - n Name of location of host [OBSOLETE]
  - r Settings [OBSOLETE]
  - t Terminal emulation [OBSOLETE]

- There should be a new field 881, named MANIFESTATION STATEMENTS
  - This field should be repeatable
  - Subfields:
    - 3 Materials specified (NR)
    - 6 Linkage (NR)
    - 8 Field link and sequence number (R)
    - a Manifestation statement, high-level/general (R)
    - b Manifestation identifier statement (R)
    - c Manifestation title and responsibility statement (R)
    - d Manifestation edition statement (R)
    - e Manifestation production statement (R)
    - f Manifestation publication statement (R)
    - g Manifestation distribution statement (R)
    - h Manifestation manufacture statement (R)
    - i Manifestation copyright statement (R)
    - j Manifestation frequency statement (R)
    - k Manifestation designation of sequence statement (R)
    - l Manifestation series statement (R)
    - m Manifestation dissertation statement (R)
    - n Manifestation regional encoding statement (R)

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>