identifyFileFormat: Write identification into Events

This uses identification information from the identification tool
used, instead of using the output of archivematicaFITS. This is more
accurate, since archivematicaFITS is no longer actually being used for
the identifications used for other tasks within Archivematica.

Fixes #6161
identifyFileFormat: Write to FilesIDs

fixes #6161
archivematicaFITS: don't write identification events

Now that archivematicaFITS is no longer the authority on file
identification, identifyFileFormat is responsible for writing these
events and IDs. This removes the events from archivematicaFITS.

refs #6161