* rename config param label-file
* annotations rework - CLI params, file naming and backups
* lint
* improve cli option error checks
* enable session cookies
* enable session cookies
* add session id
* name annotations file in multi-dataset and multi-user safe manner
* pass data user hash to front-end
* add annotation collection name support to front-end
* add constant for annotation data collection name
* parameterize annotation collection name; make it sticky in the session
* clarify comments
* hard wire a temporary data collection name for testing
* prettier
* test comment
* package command
* set annotations filename dialog
* name and hash are visible
* wire up data collection capture
* add last mod time lookup to data locator
* store data locator in Driver
* save metadata header in labels csv
* lint
* fix tests
* change datetime format to second precision
