RSZ: add option to include order attribute from reflection properties for GameObjectRef fields

[seifhassine]

PFB files have a GameObjectRefInfos table. Each entry has a property_id attribute that references a field in the source object (the field is always of type via.GameObjectRef).

property_id is a 32-bit value encoding:

• Upper 16 bits: Depth of the type that defines the referenced field (number of types in the inheritance chain to System.Object, including both)
• Lower 16 bits (relevant here): The source field's order attribute from il2cpp's reflection_properties

To fully rebuild PFB files without hardcoding property_ids, the order attribute must be dumped for all via.GameObjectRef fields. This allows matching the lower 16 bits of property_id to the correct field by its order value.

For this purpose I included a --include_order option.