Make it configurable which entities create Audit records

[Yannick86]

At the moment every entity inherits from AuditEntity and thus creates auditting.
To avoid massive obsolete audit records it is preferred to be able to configure which entity generates auditting.

1). Would you implement this in the boilerplate?
2). If not, how would you handle this? I was thinking that ApplicationDbContext.UpdateAuditProperties would need a cached list of the 'AuditSettings' records that were configured ( somewhere ), but how would you do this?