Add 'Workshop/short course/session notes' field to dynamic fields available in templates

We utilise the 'workshop notes' section to record internal notes regarding a workshop instance.

We'd like to be able to pull the information in those notes into a template so we can send the info to trainers and admins via email as a reminder prior to a workshop occurring.

However, this is not a field currently available as a dynamic field in templates so we would like to see it added, please.

Financial notes would also be useful