lifetime property: No deletion mechanism for Local entities and in serverless context.

[AleziaKurdis]

The "lifetime" property doesn't work for "local" entities. since there is no client side mechanism to make the deletion happen.
Because of this , we are 100% forced to manage the deletion of those entities by script.
There are plenty of use cases where lifetime would be useful. And this would simplify the scripting.

If we had such client side mechanism, we could also use it when the context is serverless, so we could manage with it "domain" and "local" entities in serverless. (it would keep some scene working when we make a serverless copy.)

Do Avatar entities "lifetime" property works in serverless? Maybe check if we would need to also manage them in serverless context.