[FEATURE] Checklist Audit Log

[ArcticSnowman]

Our marketing team would like to use the checklist to confirm certain checks have been done. For audit purposes we need to show who checked what items in the check list and when.

We like the plugin to generate some logging when an item is checked or unchecked, when and by which user.

The log should be compatible with a logging plugin like https://simple-history.com/