Uploading workspace functionality

The Dyname receives a file as byte array, saves it as a file, upload this file, sends all needed for restoring the workspace data to the Flood
Good description on GitHub, @marimano! But please remember that if you add this info on the code itself, it will be much more valuable. Please add the following to the ```///``` comment for ```class ConnectorToCreate```:

```cs
/// This class represents the data that is required to create connectors on the 
/// client. When a file is opened on Dynamo Server, this information is delivered 
/// to the client to generate connectors found in the file. The data contains 
/// only outgoing connectors since incoming connectors were added as outgoing 
/// connectors from other upstream nodes.
```