References:
https://www.revitapidocs.com/2020/0ce4c555-4cee-f5fd-2e84-43cacf34ac5c.htm
https://thebuildingcoder.typepad.com/blog/2013/08/setting-the-compound-structure-core-and-shell-layers.html
https://thebuildingcoder.typepad.com/blog/2012/03/updating-wall-compound-layer-structure.html
https://github.com/jeremytammik/the_building_coder_samples/blob/master/BuildingCoder/BuildingCoder/CmdNewWallLayer.cs
