add log marking when someone deletes issued certificate

[jarvil1]

Hello,

I would like to see an feature where activity writes a log entry to the Moodle log when someone deletes issued certificate f.ex "user NN deleted issued certifacet 1234 from activity number 35353"

[mdjnelson]

This would require a new event to be created, see similar events in this module and take a look at https://docs.moodle.org/dev/Events_API.