Fix error when deserializing SubgraphNodes
SubgraphNode now uses the Title, Description, and Icon from the referenced Subgraph
SubgraphNode now generates inputs from any Parameter nodes in the subgraph, with default names for any without.
SubgraphNodes now generate output plugs from the FunctionResult node in the references Subgraph
https://files.facepunch.com/CarsonKompon/2025/January/21_16-23-CoordinatedEastsiberianlaika.png