What is this
Basically a hierarchy system for torque:

If we dump the red SimObject, then its hierarchyParent value will be set to the pink SOHierarchy's ObjectID.
If we dump the blue SimObject, then its hierarchyParent value will be set to the blue SOHierarchyNode's ObjectID.
If we dump the blue SOHierarchyNode, then its hierarchyParent value will be set to the pink SOHierarchy's ObjectID.
If we dump the pink SOHierarchy, then it won't have a hierarchyParent value.
How does it make saving things easier..
I didn't think about that, oops.