Fix formatting in MongoScheduleStoreTest
MongoScheduleStore only uses EquivalentContentResolver

Change MongoScheduleStore to only use an EquivalentContentResolver
rather than a ContentResolver thus ensuring that Items returned are
correctly identified with their full equivalent set of ids.

In the case where an ApplicationConfiguration is missing the provided
publishers are used to synthesize one.
Merge branch 'mbst-8112-schedule-ids' into stage

* mbst-8112-schedule-ids:
  MongoScheduleStore only uses EquivalentContentResolver
  Fix formatting in MongoScheduleStoreTest