Backport for SP-989
Merge pull request #53 from pentaho-skarmali/SP-989_dup_ids_insert_mongodb_backport_5

Backport of PDI-11223 - Getting duplicate ID errors while doing batch inserts to MongoDB (5.0)
[SP-990] Backport of [PDI-11045]

MongoDB output step should not require entering a field twice for upserts.
[SP-990] Backport of [PDI-11045] - Unit Tests

MongoDB output step should not require entering a field twice for upserts.
Unit Test
Merge branch 'SP-990' of github.com:hudak/pentaho-mongodb-plugin into SP-990