Bug 5858: Followup for INSERT IGNOREs in marc21_framework_DEFAULT.sql

Bug 5858: Followup for INSERT IGNOREs in marc21_framework_DEFAULT.sql

Changes 8 INSERTs into INSERT IGNOREs.
This allows current installs to benefit easier from the new tags/subfields.
Note that running with --force will not achieve the same! The multi-value
inserts will still be aborted, though execution continues.

Test plan:
Run the file or do a new install.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Ran the file on a current install manually.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>