Client/Server duplex is still a mess in C#.

Adding option to select fixed pitch font only.

Adding suspend/resume button.
Setting our server process to higher priority to avoid render lags.

Adding disconnect function to our interface.

Fixing hang when closing server with live client due to client instance context
throwing an exception when closing.

Adding interface project.

Removing older solution file.

Adding interface library.

Adding server closing notification to clients.

Now support duplex mode with new client.