Fix for MAGN-4534 Enhance TypedParametersToString helper method

@Benglin  MAGN-4534 is fixed.
TypedParametersToString helper method use now FunctionDescriptor.Parameters instead of FunctionDescriptor.InputParameters and it has been moved to Dynamo.Nodes.Utilities.

@Benglin I will use builder.Length (which works just as String.Length), so the check will be builder.Length > 0