ProtocolClient Interface does not allow to specify the affordance name, if the information is not contained in the Form

The implementation of the ProtocolClient methods in node-wot assume that all the information needed to read a property, invoke an action or subscribe to an event is contained in a Form. See https://github.com/eclipse-thingweb/node-wot/blob/master/packages/core/src/protocol-interfaces.ts#L48
When implementing a websocket binding based on the Webthingprotocol, we saw that this is not the case for all protocols.
We had a long discussion on Discord about it. And in the Webthingprotocol spec the form href will not contain a property name or action name, so we would need to overload ProtocolClient methods with additional versions which also take the names as an input parameter.