Store created date and last updated date as part of a CouchDB model when saving/updating

[jackcmeyer]

🚀 Feature Proposal

For auditing purposes, we would like to save the created date and last updated date for CouchDB models.

These should be stored as unix timestamps.

Created date should only be updated on object create.
Last Updated should be displayed anytime the model is updated.

Motivation

Auditing

Example

{
	// .... other fields in patient
	createdDate: ${unix timestamp},
	lastUpdatedDate: ${unixTimestamp}, 
}