REACH-102 Port default behavior not correct

The information about node ports default values obtained from the Dynamo node sended to the Flood. Updated data from the Flood changes values in the Dynamo.
I looked through the current implementation, this should have documentation as followed:

```csharp
/// <summary>
/// This property represents the default value for each of the input parameters.
/// It can potentially contain primitive value types such as 'int', 'double', 'bool'
/// and 'string'. If no default value is given to an input parameter, then it has 
/// the corresponding entry in 'DefaultValues' as 'null'.
/// </summary>
```