DEQM Submit Data Update Type Extension

This Extension supports the concepts 'incremental' and 'snapshot' and corresponds to the measureScore types in the FHIR R5 version of MeasureReport.

• The DEQM Consumer Server SHALL use this Extension to advertise whether it supports snapshot or incremental updates for the DEQM Submit Data transaction.
• The DEQM Producer Client SHALL use this Extension to indicate whether the payload is a snapshot or incremental update for DEQM Submit Data transaction.

When responding to the DEQM Collect Data transaction, the DEQM Producer Server SHALL value it 'incremental' if the `lastReceivedOn` parameter is present or 'snapshot if the `lastReceivedOn` parameter is absent.