Change ObsCollection to List in Common, write FunctionMaterialCreationVM, remove old UI, binding enums and functions to new UI.

StructureHelperCommon/Models/Functions/FormulaFunction.cs

@@ -57,7 +57,7 @@ namespace StructureHelperCommon.Models.Functions
             }
         }
         public Guid Id => throw new NotImplementedException();
-        public ObservableCollection<IOneVariableFunction> Functions { get; set; } = new ObservableCollection<IOneVariableFunction>();
+        public List<IOneVariableFunction> Functions { get; set; } = new List<IOneVariableFunction>();
         public double MinArg { get; set; }
         public double MaxArg { get; set; }
         public IShiftTraceLogger? TraceLogger { get; set; }