[SUGGESTION] Interface for deduplication in the Django Admin

[YPCrumble]

Hi - thanks for building this library!

In my use case, I would like for someone on my team to be able to deduplicate records using the Django Admin or other UI. Would that be something that would be feasible using this library as a base?

It also appears that this library creates a new merged instance, instead of merging duplicate instance(s) into the "canonical" instance - is that the case?

Thanks for taking a look at this issue!