Revert "Revert "DE3029 Correctly validate assessment/studentAssessment subdoced entities""

This reverts commit 43428d8eda25d735364122932769955db43c1e13.
Fixed DisabledFilter to allow Put on custom data

ClassPeriod does not support Put, but ClassPeriod/{id}/custom does
US5976 fix errors in EdFi2SLI transformer
Merge branch 'us5975' of github.com:inbloomdev/datastore into us5975
Merge branch 'us5975' into us5975_odin
US5976 add reference config
DE3029 Fix data when posting studentAssessment
US5976 Modify Reference Config
US5975 Syntax fixes
us5976 - fix cut ingestion test data
Merge branch 'master' into us5975
Merge branch 'us5975' into us5975_odin