Make group/user permission entities auditable

[rtisma]

Currently, there is no record of update or delete events to a permission. To implement something like this, 3 fields need to be introduced for auditable entities

• version: field which indicates which version it is. There is no need to revert a version, but this is simply for keeping track
• created_at: field which indicates the creation date of the current version
• is_deleted: field indicating a soft delete