Teiid view needs to indicate when a server is NOT connected.

Teiid view does not show status of a Teiid server connection and it should.

Actions also need to know the state of a Teiid server connection else they might error-out.

So. Let's add a Server.isConnected() method rather than rely on Server.ping() method which returns a Status.

The Teiid view could check on every refresh() if a server is connected or not.