Entity aliases can now be updated as a reaction to the spawnable being loaded or at any other time afterwards through the Spawnable Entities Interface. Currently these changes are applied to the spawnable that owns the entity aliases, but once the Spawnable Entities Interface makes use of AzFramework::Scene a copy of the entity aliases should be stored in the scene and be updated instead of the spawnable.
This change also adds support for a load barrier, which acts the same as a regular barrier but also accounts for the spawnable being loaded and won't trigger the callback until has completed.
The return values in from the processing functions in the Spawnable Entities Manager now have a clearer return value to indicate whether a request has completed or is being re-queued.
Signed-off-by: AMZN-koppersr <82230785+AMZN-koppersr@users.noreply.github.com>
AMZN-koppersr
a05d5f5d6d