Fix NodeResult shader compile error
Slight refactor to BaseNode.CreateEditor
Added IParameterNode.GetRangeMin and GetRangeMax. Parameter Nodes have "CanEditOnNode" instead of "IsAttribute" when in a subgraph. Determines whether or not an inline editor is created on the node
Use SubgraphNode.InputReferences when creating the DefaultEditor and drawing the default Plug Value
Ensure that inline DefaultEditors for subgraphs grab the UI.Step value for sliders
Make Color Editor works with SubgraphNodes