Upgrade 1.4 -> 1.5

Before upgrading, back up your project to avoid any data loss.

APIs marked as deprecated on 1.3 and earlier are removed on 1.5. Make sure your project is not using them before upgrading.

DestroyReason.MaxReached🠚 MaxEntitiesReached

The MaxReached enum value of DestroyReason was renamed to MaxEntitiesReached to allow space for the new MaxQueriesReached.