Change POD export to use 950 MARC tag

[ahafele]

POD currently uses the 999 and we want to change it to 950 (ahead of google books export).

We need to

1. Pause POD dags
2. Send new mapping to reshare rep(s)
3. Update code to use 950 for full and ongoing POD exports
4. Send new full dump to POD

[jgreben]

@ahafele does the 950 also use the same subfields as the 999?

Holdings subfield = folio holdings field
h = holdingsTypeId
l = permanentLocationId
w = callNumberTypeId
r = illPolicyId
a = callNumber

Item subfield = folio items field
i = itemBarcode
t = materialTypeId
e = effectiveLocationId
j = numberOfPieces
a = enumeration

[ahafele]

Yes, all subfields remain the same.