Update the World's default system groups.
The system group update order is:
1. InitializationSystemGroup
2. SimulationSystemGroup
3. PresentationSystemGroup
Generally this is not necessary within the context of a UnityEngine application; instead, use
ScriptBehaviourUpdateOrder.AppendWorldToPlayerLoop to insert these system groups into the
UnityEngine player loop, where they'll be interleaved with existing UnityEngine updates.