Entity history mechanics for NHibernate

[Scythale]

I'm sharing my own implementation of entity history mechanics for the NHibernate ORM.
The implementation is based on NHibernate event listeners.
Aslo I've made a few changes to the entity mappings.

[ismcagdas]

@Scythale thanks a lot for your contribution 👍 Let me know when it is ready for review.

[ismcagdas]

@Scythale Is this completed ?

[Scythale]

yes

[ismcagdas]

@Scythale thanks again for your contribution. I have tested the PR and I think there is a problem. IEntityHistoryHelper is transient and used in both InsertEventListener to add changes to static EntityChangeSets list and used in FlushEventListener to save those changes. But, since IEntityHistoryHelper is transined InsertEventListener and FlushEventListener gets different instances. Becasue of this, no change is saved. Do you think my assumption is correct or does this work correctly ?

[Scythale]

@ismcagdas sorry for the lack of response. I have no time to investigate issue you found. Only thing I can say is that entity history has been working fine in production environment for a few months now.